POJ刷题顺序

POJ从简到难（按照AC数目排序）的列表如下，作为小弱的刷题顺序。大牛们可以看后面倒排的hard表，还有四道题没人拿到first blood.
表格属性依次为：ID，Title, Ratio, AC, Submit

1000 A+B Problem 0.55 188072 338977
1004 Financial Management 0.41 58282 140301
1003 Hangover 0.48 50457 103742
1002 487-3279 0.17 43922 247299
1005 I Think I Need a Houseboat 0.43 38343 88354
1006 Biorhythms 0.31 36150 115300
1007 DNA Sorting 0.4 34009 84442
1001 Exponentiation 0.24 33788 138161
1088 滑雪 0.37 29038 78117
1011 Sticks 0.23 28364 122434
1163 The Triangle 0.6 23032 38362
1273 Drainage Ditches 0.38 22044 57304
1050 To the Max 0.53 21905 41297
1008 Maya Calendar 0.3 20688 67112
3468 A Simple Problem with Integers 0.3 20163 65502
2388 Who’s in the Middle 0.58 18859 32355
1159 Palindrome 0.34 18551 53718
1012 Joseph 0.37 18313 48530
1061 青蛙的约会 0.18 16934 92122
1664 放苹果 0.63 16916 26612
3264 Balanced Lineup 0.46 16810 35809
1258 Agri-Net 0.4 16790 41173
2027 No Brainer 0.65 16726 25560
1207 The 3n + 1 problem 0.31 16583 52190
1458 Common Subsequence 0.4 15819 39257
2299 Ultra-QuickSort 0.36 15669 43029
1014 Dividing 0.25 15606 60505
1125 Stockbroker Grapevine 0.55 15274 27560
3278 Catch That Cow 0.31 15133 48304
2533 Longest Ordered Subsequence 0.43 15103 34397
1017 Packets 0.33 15002 44410
1046 Color Me Less 0.48 14996 30808
1218 THE DRUNK JAILER 0.62 14963 23785
2352 Stars 0.43 14751 33816
2262 Goldbach’s Conjecture 0.38 14726 38316
2503 Babelfish 0.42 14353 33447
2406 Power Strings 0.41 13864 33381
1753 Flip Game 0.43 13723 31565
1182 食物链 0.29 13509 46390
2000 Gold Coins 0.62 13367 21324
1028 Web Navigation 0.44 13245 29656
2528 Mayor’s posters 0.29 12866 44108
1013 Counterfeit Dollar 0.31 12783 40130
1298 The Hardest Problem Ever 0.54 12541 22823
2104 K-th Number 0.32 12469 38364
1979 Red and Black 0.53 12434 23044
2524 Ubiquitous Religions 0.49 12361 25024
1328 Radar Installation 0.22 12287 54580
1459 Power Network 0.52 12284 23459
2017 Speed Limit 0.7 12240 17420
1068 Parencodings 0.6 12145 20131
1316 Self Numbers 0.56 12088 21497
2823 Sliding Window 0.29 11934 40394
1503 Integer Inquiry 0.38 11823 30352
1936 All in All 0.41 11783 28512
1067 取石子游戏 0.33 11731 34989
3259 Wormholes 0.36 11604 31956
1321 棋盘问题 0.49 11535 23260
1611 The Suspects 0.48 11323 23303
1552 Doubles 0.57 11238 19409
1077 Eight 0.43 11005 25074
2777 Count Color 0.3 10987 36406
1517 u Calculate e 0.58 10943 18581
3624 Charm Bracelet 0.45 10895 24147
1062 昂贵的聘礼 0.28 10842 37563
2105 IP Address 0.57 10814 18733
2488 A Knight’s Journey 0.34 10787 31626
2739 Sum of Consecutive Prime Numbers 0.54 10755 19615
1658 Eva’s Problem 0.61 10678 17451
2485 Highways 0.46 10593 22996
2479 Maximum sum 0.3 10571 34144
2386 Lake Counting 0.5 10529 20891
2387 Til the Cows Come Home 0.33 10454 30926
1915 Knight Moves 0.46 10357 22177
1330 Nearest Common Ancestors 0.52 10238 19334
1113 Wall 0.33 10170 30239
1703 Find them, Catch them 0.3 9986 32321
1276 Cash Machine 0.35 9980 27960
3461 Oulipo 0.4 9976 24833
1742 Coins 0.33 9967 29407
1363 Rails 0.39 9930 25280
3094 Quicksum 0.69 9871 14137
1019 Number Sequence 0.28 9858 34340
2186 Popular Cows 0.41 9830 23945
1094 Sorting It All Out 0.34 9792 28332
2109 Power of Cryptography 0.5 9749 19316
1080 Human Gene Functions 0.55 9605 17277
2140 Herd Sums 0.59 9503 16050
2492 A Bug’s Life 0.32 9423 28882
2159 Ancient Cipher 0.32 9401 28632
3176 Cow Bowling 0.66 9368 14133
2195 Going Home 0.51 9312 18252
2081 Recaman’s Sequence 0.42 9197 21542
1338 Ugly Numbers 0.44 9180 20675
1401 Factorial 0.61 9011 14552
1251 Jungle Roads 0.45 8998 19591
2774 Long Long Message 0.41 8896 21629
3253 Fence Repair 0.32 8874 27279
2187 Beauty Contest 0.31 8858 28543
1160 Post Office 0.54 8761 16137
1083 Moving Tables 0.33 8760 26279
1042 Gone Fishing 0.29 8733 29238
2390 Bank Interest 0.59 8680 14521
2253 Frogger 0.32 8658 26611
1274 The Perfect Stall 0.45 8612 18989
2301 Beat the Spread! 0.47 8607 18027
3041 Asteroids 0.54 8577 15729
3030 Nasty Hacks 0.69 8567 12392
1157 LITTLE SHOP OF FLOWERS 0.46 8526 18518
1504 Adding Reversed Numbers 0.54 8510 15484
1579 Function Run Fun 0.51 8510 16497
1519 Digital Roots 0.33 8491 25443
3062 Celebrity jeopardy 0.56 8478 15025
2136 Vertical Histogram 0.48 8469 17504
3469 Dual Core CPU 0.43 8388 19362
1657 Distance on Chessboard 0.34 8385 24485
3349 Snowflake Snow Snowflakes 0.26 8356 31707
1018 Communication System 0.35 8352 23504
1423 Big Number 0.31 8313 25992
1201 Intervals 0.37 8311 22022
2421 Constructing Roads 0.41 8261 19774
3673 Cow Multiplication 0.69 8215 11824
2513 Colored Sticks 0.26 8209 31122
1045 Bode Plot 0.63 8176 12878
3006 Dirichlet’s Theorem on Arithmetic Progressions 0.5 8051 16047
1922 Ride to School 0.4 7852 19424
1065 Wooden Sticks 0.41 7820 18635
1953 World Cup Noise 0.49 7808 15835
2656 Unhappy Jinjin 0.73 7751 10606
1308 Is It A Tree? 0.34 7700 22470
1185 炮兵阵地 0.38 7686 19869
2350 Above Average 0.52 7675 14561
2418 Hardwood Species 0.39 7604 19301
2013 Symmetric Order 0.6 7550 12404
1426 Find The Multiple 0.4 7498 18541
1149 PIGS 0.44 7476 16679
1477 Box of Bricks 0.4 7476 18318
1811 Prime Test 0.25 7448 29302
1679 The Unique MST 0.35 7422 21018
1860 Currency Exchange 0.35 7410 20662
1789 Truck History 0.38 7354 19075
2965 The Pilots Brothers’ refrigerator 0.38 7324 19119
1141 Brackets Sequence 0.28 7323 25965
1543 Perfect Cubes 0.52 7295 13796
2255 Tree Recovery 0.62 7291 11610
1663 Number Steps 0.53 7260 13451
1256 Anagram 0.4 7257 17823
1118 Lining Up 0.31 7202 22861
1032 Parliament 0.42 7200 17069
3630 Phone List 0.3 7171 23302
2155 Matrix 0.37 7158 19039
1035 Spell checker 0.36 7154 19590
2362 Square 0.34 7094 20391
1195 Mobile phones 0.46 7092 15362
1469 COURSES 0.39 7060 17912
2236 Wireless Network 0.42 7047 16747
1562 Oil Deposits 0.54 7045 12892
2411 Mondriaan’s Dream 0.58 7044 12094
2828 Buy Tickets 0.5 6986 13952
2676 Sudoku 0.49 6959 14081
2509 Peter’s smokes 0.41 6943 16865
2636 Electrical Outlets 0.75 6893 9155
3070 Fibonacci 0.71 6887 9689
1988 Cube Stacking 0.34 6814 19475
1151 Atlantis 0.38 6810 17912
2240 Arbitrage 0.42 6796 16161
3233 Matrix Power Series 0.42 6782 15856
1844 Sum 0.65 6739 10270
1837 Balance 0.62 6736 10836
2389 Bull Math 0.51 6733 13060
1565 Skew Binary 0.63 6704 10494
1833 排列 0.4 6703 16737
2521 How much did the businessman lose 0.67 6692 9884
3126 Prime Path 0.56 6690 11780
1656 Counting Black 0.64 6670 10325
2141 Message Decowding 0.55 6659 11940
2593 Max Sequence 0.41 6643 15834
1743 Musical Theme 0.34 6633 19355
2243 Knight Moves 0.56 6628 11759
2251 Dungeon Master 0.38 6602 16953
1200 Crazy Search 0.28 6590 23397
2602 Superlong sums 0.29 6572 22310
1511 Invitation Cards 0.32 6525 19986
2665 Trees 0.65 6518 9880
1015 Jury Compromise 0.26 6517 24971
1961 Period 0.47 6395 13580
3159 Candies 0.27 6363 23560
1129 Channel Allocation 0.51 6356 12417
3100 Root of the Problem 0.53 6290 11714
1016 Numbers That Count 0.33 6273 18804
3299 Humidex 0.36 6253 17218
2002 Squares 0.37 6225 16411
2752 Seek the Name, Seek the Fame 0.49 6181 12596
2840 Big Clock 0.63 6168 9739
2551 Ones 0.56 6152 10811
1840 Eqs 0.48 6150 12553
3273 Monthly Expense 0.39 6126 15323
1102 LC-Display 0.39 6124 15366
2578 Keep on Truckin’ 0.75 6122 8087
2001 Shortest Prefixes 0.43 6091 14153
3980 取模运算 0.6 6024 9881
2909 Goldbach’s Conjecture 0.59 6013 10176
2182 Lost Cows 0.64 6003 9319
3321 Apple Tree 0.3 5980 19628
1631 Bridging signals 0.54 5954 10835
2449 Remmarguts’ Date 0.27 5916 21707
2728 Desert King 0.28 5899 20980
1862 Stripies 0.47 5897 12423
2231 Moo Volume 0.29 5887 19664
3268 Silver Cow Party 0.44 5885 13107
1166 The Clocks 0.4 5860 14605
1799 Yeehaa! 0.48 5852 12045
1731 Orders 0.61 5818 9527
3067 Japan 0.27 5814 21522
2192 Zipper 0.35 5794 16295
1326 Mileage Bank 0.41 5715 13707
2039 To and Fro 0.66 5665 8460
2407 Relatives 0.48 5615 11498
1887 Testing the CATCHER 0.36 5614 15249
1177 Picture 0.52 5607 10615
1797 Heavy Transportation 0.26 5597 21110
2719 Faulty Odometer 0.62 5583 8991
1047 Round and Round We Go 0.46 5580 11960
2249 Binomial Showdown 0.3 5561 18253
2371 Questions and answers 0.52 5553 10479
3080 Blue Jeans 0.43 5490 12646
3438 Look and Say 0.6 5481 9082
1056 IMMEDIATE DECODABILITY 0.47 5458 11483
2196 Specialized Four-Digit Numbers 0.72 5429 7439
1942 Paths on a Grid 0.24 5417 22069
1716 Integer Intervals 0.42 5413 12788
1969 Count on Canton 0.58 5412 9247
1861 Network 0.39 5405 13850
2190 ISBN 0.35 5385 15260
3667 Hotel 0.43 5370 12474
2586 Y2K Accounting Bug 0.5 5366 10711
1528 Perfection 0.47 5358 11294
2070 Filling Out the Team 0.56 5358 9555
1064 Cable master 0.21 5341 24901
2309 BST 0.6 5283 8663
2229 Sumsets 0.4 5280 13160
1183 反正切函数的应用 0.36 5267 14589
1573 Robot Motion 0.48 5262 10860
1026 Cipher 0.26 5246 19521
2318 TOYS 0.48 5169 10736
1325 Machine Schedule 0.42 5129 12035
1269 Intersecting Lines 0.45 5110 11307
2328 Guessing Game 0.35 5100 14551
3009 Curling 2.0 0.42 5099 12096
1470 Closest Common Ancestors 0.32 5085 15837
2234 Matches Game 0.57 5082 8803
1674 Sorting by Swapping 0.53 5067 9456
3749 破译密码 0.63 5045 7986
3518 Prime Gap 0.58 5034 8584
1020 Anniversary Cake 0.32 5033 15501
3368 Frequent values 0.36 5023 13663
3077 Rounders 0.64 4980 7689
3650 The Seven Percent Solution 0.66 4973 7423
2575 Jolly Jumpers 0.3 4962 16324
1190 生日蛋糕 0.35 4936 14032
2761 Feed the dogs 0.31 4935 15893
2559 Largest Rectangle in a Histogram 0.32 4918 15266
3481 Double Queue 0.45 4893 10820
2478 Farey Sequence 0.38 4864 12477
3589 Number-guessing Game 0.72 4849 6704
3984 迷宫问题 0.58 4814 8170
3302 Subsequence 0.58 4813 8275
1455 Crazy tea party 0.67 4810 7097
2115 C Looooops 0.26 4807 18340
3261 Milk Patterns 0.44 4781 10632
3325 ICPC Score Totalizer Software 0.69 4778 6829
3750 小孩报数问题 0.46 4770 10288
1029 False coin 0.27 4765 17063
2516 Minimum Cost 0.34 4760 13858
1466 Girls and Boys 0.44 4756 10599
2453 An Easy Problem 0.59 4731 7929
1111 Image Perimeters 0.59 4703 7884
1488 TEX Quotes 0.52 4691 8947
1604 Just the Facts 0.53 4662 8789
2608 Soundex 0.49 4656 9385
1547 Clay Bully 0.56 4649 8227
1087 A Plug for UNIX 0.33 4641 13874
1236 Network of Schools 0.39 4626 11624
2785 4 Values whose Sum is 0 0.28 4624 15999
3224 Go for Lab Cup! 0.5 4622 9071
3086 Triangular Sums 0.71 4611 6481
3663 Costume Party 0.4 4607 11427
1323 Game Prediction 0.47 4602 9622
1804 Brainman 0.54 4580 8479
2377 Bad Cowtractors 0.42 4577 10851
2778 DNA Sequence 0.38 4564 11970
2112 Optimal Milking 0.36 4562 12622
3013 Big Christmas Tree 0.21 4561 21090
2242 The Circumference of the Circle 0.61 4557 7393
3173 Parkside’s Triangle 0.6 4557 7477
2051 Argus 0.46 4555 9737
1010 STAMPS 0.28 4550 16121
1144 Network 0.46 4537 9666
1852 Ants 0.44 4517 10180
3250 Bad Hair Day 0.33 4514 13381
3632 Optimal Parking 0.59 4510 7532
2247 Humble Numbers 0.46 4505 9591
2395 Out of Hay 0.39 4504 11546
3981 字符串替换 0.47 4501 9410
1247 Magnificent Meatballs 0.66 4496 6768
1222 EXTENDED LIGHTS OUT 0.65 4495 6812
3352 Road Construction 0.49 4494 9055
3277 City Horizon 0.27 4481 16504
2135 Farm Tour 0.37 4459 11929
3281 Dining 0.46 4457 9666
2531 Network Saboteur 0.47 4451 9421
3740 Easy Finding 0.27 4429 16362
3210 Coins 0.65 4420 6724
3117 World Cup 0.5 4411 8784
3254 Corn Fields 0.53 4406 8287
2591 Set Definition 0.46 4397 9380
2871 A Simple Question of Chemistry 0.66 4394 6627
2707 Copier Reduction 0.52 4390 8316
2446 Chessboard 0.31 4379 14064
1191 棋盘分割 0.35 4373 12411
1654 Area 0.27 4360 15671
2481 Cows 0.33 4354 13113
2623 Sequence Median 0.27 4341 15519
1836 Alignment 0.32 4331 13453
3083 Children of the Candy Corn 0.43 4317 9943
1775 Sum of Factorials 0.33 4304 13011
1142 Smith Numbers 0.34 4277 12542
3414 Pots 0.42 4273 10147
1226 Substrings 0.35 4269 12146
1051 P,MTHBGWB 0.57 4244 7361
2080 Calendar 0.36 4236 11484
1411 Calling Extraterrestrial Intelligence Again 0.39 4228 10801
3085 Quick Change 0.72 4207 5835
1450 Gridland 0.5 4185 8258
1700 Crossing River 0.37 4181 11092
1947 Rebuilding Roads 0.45 4177 9219
2181 Jumping Cows 0.6 4177 6960
2663 Tri Tiling 0.52 4160 7946
2924 Gauß in Elementary School 0.44 4149 9258
1009 Edge Detection 0.23 4147 17991
3979 分数加减法 0.33 4135 12376
2405 Beavergnaw 0.65 4125 6251
2392 Space Elevator 0.47 4101 8652
2583 Series Determination 0.65 4091 6216
1318 Word Amalgamation 0.48 4054 8388
2538 WERTYU 0.47 4050 8466
1422 Air Raid 0.59 4049 6787
2245 Lotto 0.63 4049 6374
3664 Election Time 0.54 4048 7493
1724 ROADS 0.36 4047 10986
1306 Combinations 0.46 4028 8657
3177 Redundant Paths 0.42 4019 9375
1250 Tanning Salon 0.53 4016 7464
1595 Prime Cuts 0.38 4014 10524
1456 Supermarket 0.42 3990 9314
1651 Multiplication Puzzle 0.6 3963 6509
2413 How many Fibs? 0.37 3963 10662
3356 AGTC 0.38 3952 10248
3660 Cow Contest 0.55 3951 7149
3619 Speed Reading 0.46 3937 8436
1850 Code 0.47 3936 8326
3096 Surprising Strings 0.65 3936 6021
1384 Piggy-Bank 0.48 3923 8104
3672 Long Distance Racing 0.53 3918 7339
2239 Selecting Courses 0.44 3894 8719
1095 Trees Made to Order 0.57 3889 6778
2385 Apple Catching 0.48 3889 7951
3267 The Cow Lexicon 0.47 3883 8241
2762 Going from u to v or from v to u? 0.26 3881 14680
2562 Primary Arithmetic 0.37 3877 10464
2092 Grandpa is Famous 0.5 3872 7698
2403 Hay Points 0.64 3853 6009
1364 King 0.36 3830 10386
2084 Game of Connections 0.5 3828 7548
3164 Command Network 0.28 3813 13179
1847 Tram 0.36 3811 10450
1655 Balancing Act 0.41 3810 9174
1730 Perfect Pth Powers 0.22 3807 16767
3122 Pie 0.35 3799 10810
2033 Alphacode 0.3 3794 12505
2853 Sequence Sum Possibilities 0.66 3790 5736
2606 Rabbit hunt 0.49 3781 7592
3507 Judging Olympia 0.47 3771 7898
2506 Tiling 0.48 3767 7746
3627 Bookshelf 0.5 3739 7470
3295 Tautology 0.37 3730 9834
1745 Divisibility 0.35 3726 10441
2083 Fractal 0.48 3720 7708
2260 Error Correction 0.65 3720 5679
2553 The Bottom of a Graph 0.41 3719 8975
2653 Pick-up sticks 0.37 3715 9993
1260 Pearls 0.49 3689 7453
3318 Matrix Multiplication 0.21 3677 16832
1161 Walls 0.48 3669 7528
1146 ID Codes 0.6 3665 6100
1131 Octal Fractions 0.54 3655 6690
1204 Word Puzzles 0.37 3650 9776
3628 Bookshelf 2 0.45 3647 7943
3274 Gold Balanced Lineup 0.29 3646 12450
2209 The King 0.55 3644 6550
2487 Stamps 0.47 3626 7696
2470 Ambiguous permutations 0.58 3621 6142
1845 Sumdiv 0.24 3616 14684
1164 The Castle 0.56 3614 6394
2769 Reduced ID Numbers 0.4 3614 9004
3169 Layout 0.47 3590 7484
2184 Cow Exhibition 0.38 3583 9344
2983 Is the Information Reliable? 0.31 3579 11348
1607 Deck 0.43 3564 8214
1741 Tree 0.31 3542 11301
2590 Steps 0.46 3532 7666
2349 Arctic Network 0.32 3527 10771
2363 Blocks 0.48 3525 7314
2498 StuPId 0.52 3520 6703
3522 Slim Span 0.52 3517 6637
3061 Subsequence 0.39 3509 8849
2393 Yogurt factory 0.51 3486 6819
2560 Freckles 0.48 3486 7150
1287 Networking 0.54 3459 6379
3748 位操作 0.4 3456 8626
1502 MPI Maelstrom 0.62 3452 5539
1038 Bugs Integrated, Inc. 0.38 3448 9019
2632 Crashing Robots 0.43 3446 7935
3751 时间日期格式转换 0.47 3437 7296
1665 Biker’s Trip Odometer 0.63 3435 5420
3620 Avoid The Lakes 0.54 3434 6356
2287 Tian Ji – The Horse Racing 0.3 3420 11146
2689 Prime Distance 0.26 3413 12779
3020 Antenna Placement 0.49 3404 6836
1986 Distance Queries 0.35 3388 9667
1386 Play on Words 0.34 3368 9797
2007 Scrambled Polygon 0.47 3368 7061
2773 Happy 2006 0.34 3365 9848
3090 Visible Lattice Points 0.58 3356 5696
2291 Rotten Ropes 0.64 3353 5164
1171 Letter Game 0.27 3339 12188
3252 Round Numbers 0.35 3334 9351
1639 Picnic Planning 0.35 3322 9354
1023 The Fun Number System 0.33 3306 9848
2391 Ombrophobic Bovines 0.21 3303 15123
2845 01000001 0.32 3297 10275
2635 The Embarrassed Cryptographer 0.26 3292 12347
2601 Simple calculations 0.5 3290 6558
2316 SPIN 0.51 3287 6358
3292 Semi-prime H-numbers 0.43 3285 7606
2914 Minimum Cut 0.42 3278 7749
2942 Knights of the Round Table 0.32 3277 10074
2456 Aggressive cows 0.5 3265 6520
2886 Who Gets the Most Candies? 0.31 3262 10498
1637 Sightseeing tour 0.41 3259 7783
1659 Frogs’ Neighborhood 0.42 3247 7561
1063 Flip and Shift 0.46 3241 6935
3422 Kaka’s Matrix Travels 0.4 3236 8074
3348 Cows 0.46 3228 7010
1324 Holedox Moving 0.23 3223 13542
3580 SuperMemo 0.32 3214 9961
3687 Labeling Balls 0.28 3206 11189
3258 River Hopscotch 0.43 3205 7402
1036 Gangsters 0.27 3195 11451
1442 Black Box 0.4 3194 7831
3617 Best Cow Line 0.3 3189 10605
2726 Holiday Hotel 0.39 3187 8125
2891 Strange Way to Express Integers 0.3 3183 10487
3982 序列 0.45 3180 7055
2348 Euclid’s Game 0.4 3174 7817
3372 Candy Distribution 0.55 3174 5724
1564 Sum It Up 0.51 3167 6139
1989 The Cow Lineup 0.59 3139 5270
2153 Rank List 0.33 3139 9430
1054 The Troublesome Frog 0.29 3133 10562
3671 Dining Cows 0.42 3132 7375
2992 Divisors 0.29 3108 10494
2226 Muddy Fields 0.36 3103 8390
1410 Intersection 0.25 3095 11949
1928 The Peanuts 0.41 3082 7470
2409 Let it Bead 0.65 3072 4671
1905 Expanding Rods 0.26 3056 11750
3304 Segments 0.3 3052 9900
1228 Grandpa’s Estate 0.27 3036 11066
1158 TRAFFIC LIGHTS 0.41 3034 7279
2018 Best Cow Fences 0.32 3019 9424
1350 Cabric Number Problem 0.3 3008 9879
3074 Sudoku 0.35 3007 8421
2376 Cleaning Shifts 0.26 3001 11527
1463 Strategic game 0.46 2990 6452
3207 Ikki’s Story IV - Panda’s Trick 0.36 2990 8135
2833 The Average 0.31 2983 9594
1089 Intervals 0.39 2982 7482
2545 Hamming Problem 0.45 2968 6457
3026 Borg Maze 0.33 2968 8903
1952 BUY LOW, BUY LOWER 0.34 2961 8549
2250 Compromise 0.44 2955 6602
2063 Investment 0.34 2952 8640
2455 Secret Milking Machine 0.29 2936 9944
3752 字母旋转游戏 0.37 2923 7755
3678 Katu Puzzle 0.36 2922 7968
3280 Cheapest Palindrome 0.48 2921 5994
2723 Get Luffy Out 0.38 2911 7629
2892 Tunnel Warfare 0.41 2910 7085
1828 Monkeys’ Pride 0.33 2897 8775
1523 SPF 0.45 2879 6259
1635 Subway tree systems 0.41 2868 6873
1230 Pass-Muraille 0.31 2866 9221
3637 Shopaholic 0.57 2866 4969
1286 Necklace of Beads 0.41 2856 6813
3255 Roadblocks 0.36 2855 7782
2499 Binary Tree 0.46 2848 6165
3087 Shuffle’m Up 0.46 2822 6024
2482 Stars in Your Window 0.27 2820 10224
2536 Gopher II 0.4 2816 6883
3723 Conscription 0.34 2815 8086
3983 快算24 0.61 2811 4584
1154 LETTERS 0.47 2810 5940
1661 Help Jimmy 0.31 2805 8774
1101 The Game 0.3 2799 9195
2451 Uyuw’s Concert 0.39 2795 7147
1039 Pipe 0.3 2794 9235
2304 Combination Lock 0.61 2788 4542
3683 Priest John’s Busiest Day 0.34 2787 8176
1995 Raising Modulo Numbers 0.58 2781 4790
3219 Binomial Coefficients 0.41 2780 6705
2796 Feel Good 0.27 2779 10167
1331 Multiply 0.53 2764 5162
2594 Treasure Exploration 0.4 2759 6826
3211 Washing Clothes 0.31 2753 8713
2185 Milking Grid 0.42 2736 6493
2028 When Can We Meet? 0.55 2733 4946
3294 Life Forms 0.27 2733 9904
3680 Intervals 0.41 2727 6591
2356 Find a multiple 0.43 2726 6247
3032 Card Trick 0.71 2725 3813
2019 Cornfields 0.49 2717 5529
1740 A New Stone Game 0.54 2715 4969
2696 A Mysterious Function 0.69 2715 3917
1606 Jugs 0.59 2707 4584
1904 King’s Quest 0.36 2707 7476
1491 Pi 0.56 2704 4825
3625 Building Roads 0.28 2696 9389
2505 A multiplication game 0.5 2692 5369
3017 Cut the Sequence 0.29 2692 9158
3641 Pseudoprime numbers 0.4 2687 6623
3615 Cow Hurdles 0.44 2683 6025
3691 DNA repair 0.46 2667 5688
1405 Heritage 0.37 2658 7149
1496 Word Index 0.56 2654 4682
3621 Sightseeing Cows 0.33 2654 7872
2230 Watchcow 0.43 2648 6133
3670 Eating Together 0.48 2644 5417
1275 Cashier Employment 0.37 2639 7116
2154 Color 0.32 2634 8050
3714 Raid 0.3 2627 8710
2248 Addition Chains 0.54 2615 4767
3225 Help with Intervals 0.24 2614 10639
3692 Kindergarten 0.48 2613 5358
1815 Friendship 0.27 2596 9301
3669 Meteor Shower 0.28 2596 9166
3463 Sightseeing 0.35 2595 7281
1107 W’s Cipher 0.5 2594 5159
2945 Find the Clones 0.37 2584 6948
1751 Highways 0.27 2580 9253
2864 Pascal Library 0.47 2574 5380
3187 Backward Digit Sums 0.57 2573 4484
1556 The Doors 0.4 2571 6410
3608 Bridge Across Islands 0.29 2568 8710
2452 Sticks Problem 0.26 2563 9685
3051 Satellite Photographs 0.47 2563 5411
3517 And Then There Was One 0.53 2556 4816
2337 Catenyms 0.26 2553 9813
1723 SOLDIERS 0.37 2551 6733
2127 Greatest Common Increasing Subsequence 0.26 2551 9629
3648 Wedding 0.3 2545 8438
1091 跳蚤 0.29 2524 8499
3370 Halloween treats 0.37 2520 6781
2987 Firing 0.3 2519 8341
1785 Binary Search Heap Construction 0.28 2515 8865
2486 Apple Tree 0.33 2515 7493
2342 Anniversary party 0.56 2511 4430
1575 Easier Done Than Said? 0.55 2503 4493
1733 Parity game 0.38 2498 6452
1666 Candy Sharing Game 0.66 2485 3734
2612 Mine Sweeper 0.38 2485 6373
3415 Common Substrings 0.33 2481 7458
3735 Training little cats 0.23 2479 10375
1106 Transmitters 0.53 2478 4630
3311 Hie with the Pie 0.52 2477 4679
2060 Taxi Cab Scheme 0.41 2476 5916
2484 A Funny Game 0.6 2473 4082
1949 Chores 0.46 2462 5246
1597 Uniform Generator 0.47 2461 5214
2782 Bin Packing 0.45 2461 5434
2442 Sequence 0.32 2460 7478
2079 Triangle 0.29 2458 8261
3694 Network 0.35 2455 6895
1221 UNIMODAL PALINDROMIC DECOMPOSITIONS 0.48 2437 5001
3737 UmBasketella 0.38 2428 6234
2054 Color a Tree 0.34 2425 7078
1037 A decorative fence 0.36 2421 6608
1704 Georgia and Bob 0.3 2412 7825
2398 Toy Storage 0.59 2411 4064
2985 The k-th Largest Group 0.32 2400 7412
1416 Shredding Company 0.56 2399 4251
1041 John’s trip 0.32 2389 7257
2029 Get Many Persimmon Trees 0.65 2382 3663
2681 Anagrammatic Distance 0.55 2382 4310
2480 Longge’s problem 0.32 2380 7241
2031 Building a Space Station 0.5 2377 4698
3140 Contestants Division 0.28 2373 8294
3427 Ecology tax 0.52 2370 4511
2075 Tangled in Cables 0.39 2363 5995
2704 Pascal’s Travels 0.44 2361 5256
3270 Cow Sorting 0.38 2359 6148
2288 Islands and Bridges 0.25 2357 9127
2549 Sumsets 0.27 2355 8518
1279 Art Gallery 0.42 2349 5544
2125 Destroying The Graph 0.31 2349 7387
2312 Battle City 0.33 2346 6947
1990 MooFest 0.43 2344 5426
3048 Max Factor 0.39 2331 5905
1981 Circle and Points 0.35 2328 6557
3668 Game of Lines 0.37 2328 6234
3104 Drying 0.25 2325 9162
1082 Calendar Game 0.47 2321 4895
1066 Treasure Hunt 0.41 2315 5574
2365 Rope 0.35 2308 6524
2396 Budget 0.38 2303 6054
3320 Jessica’s Reading Problem 0.31 2301 7312
1186 方程的解数 0.34 2293 6692
2394 Checking an Alibi 0.36 2292 6291
2664 Prerequisites? 0.62 2291 3663
1698 Alice’s Chance 0.41 2283 5510
1126 Simply Syntax 0.44 2282 5137
1978 Hanafuda Shuffle 0.57 2282 3951
1265 Area 0.44 2280 5096
2272 Bullseye 0.47 2279 4791
2370 Democracy in danger 0.73 2277 3087
1505 Copying Books 0.31 2271 7280
1135 Domino Effect 0.24 2263 9061
3308 Paratroopers 0.3 2261 7498
2975 Nim 0.46 2254 4857
1322 Chocolate 0.26 2253 8582
1681 Painter’s Problem 0.48 2251 4614
1577 Falling Leaves 0.55 2247 4064
2996 Help Me with the Game 0.64 2246 3501
2378 Tree Cutting 0.59 2245 3756
2151 Check the difficulty of problems 0.44 2241 5085
2576 Tug of War 0.27 2240 8286
3604 Professor Ben 0.25 2238 8750
2339 Rock, Scissors, Paper 0.58 2235 3824
2244 Eeny Meeny Moo 0.69 2229 3214
1625 Censored! 0.27 2223 8227
2941 Homogeneous Squares 0.52 2217 4253
1152 An Easy Problem! 0.25 2208 8741
2419 Forests 0.38 2206 5765
2954 Triangle 0.43 2205 5100
1147 Binary codes 0.38 2203 5651
1830 开关问题 0.37 2203 5833
2976 Dropping tests 0.34 2201 6378
3366 Deli Deli 0.56 2191 3873
2431 Expedition 0.29 2190 7384
3069 Saruman’s Army 0.51 2184 4252
3613 Cow Relays 0.39 2168 5485
1948 Triangular Pastures 0.32 2166 6649
3076 Sudoku 0.48 2163 4443
2749 Building roads 0.33 2158 6387
3693 Maximum repetition substring 0.29 2158 7224
2501 Average Speed 0.44 2153 4812
2289 Jamie’s Contact Groups 0.32 2141 6619
1189 钉子和小球 0.29 2132 7138
3335 Rotating Scoreboard 0.39 2131 5342
3186 Treats for the Cows 0.5 2129 4230
3635 Full Tank? 0.32 2126 6502
3636 Nested Dolls 0.27 2125 7840
3249 Test for Job 0.22 2121 9327
2771 Guardian of Decency 0.42 2114 5021
2436 Disease Management 0.47 2110 4462
3007 Organize Your Train part II 0.28 2108 7278
2014 Flow Layout 0.69 2103 3032
2305 Basic remains 0.42 2100 4976
1404 I-Keyboard 0.49 2094 4271
3256 Cow Picnic 0.41 2087 5052
2346 Lucky tickets 0.65 2086 3184
2367 Genealogical tree 0.67 2086 3082
1179 Polygon 0.41 2081 4959
3157 Java vs C++ 0.28 2076 7305
2502 Subway 0.32 2073 6336
2271 HTML 0.32 2071 6288
3014 Cake Pieces and Plates 0.31 2061 6582
3616 Milking Time 0.41 2057 4898
2546 Circular Area 0.4 2052 5121
1317 Do the Untwist 0.6 2050 3365
3125 Printer Queue 0.53 2048 3796
1696 Space Ant 0.64 2046 3192
2603 Brave balloonists 0.42 2038 4776
3659 Cell Phone Network 0.35 2033 5669
2876 Cantoring Along 0.54 2029 3714
1376 Robot 0.32 2026 6228
1546 Basically Speaking 0.45 2017 4451
3132 Sum of Different Primes 0.62 2015 3242
3204 Ikki’s Story I - Road Reconstruction 0.28 2009 6975
3665 iCow 0.36 2009 5434
2572 Hard to Believe, but True! 0.57 2006 3508
1609 Tiling Up Blocks 0.39 2004 5129
3300 Tour de France 0.47 2004 4184
1155 TELE 0.52 1998 3775
2709 Painter 0.62 1998 3212
3155 Hard Life 0.28 1996 6906
3666 Making the Grade 0.47 1995 4228
3536 Beer Refrigerator 0.38 1993 5116
1379 Run Away 0.3 1985 6463
1835 宇航员 0.42 1985 4633
1493 Machined Surfaces 0.63 1978 3127
1156 A STRIP OF LAND 0.29 1973 6641
1699 Best Sequence 0.39 1971 4976
1220 NUMBER BASE CONVERSION 0.45 1965 4356
1971 Parallelogram Counting 0.33 1964 5830
3411 Paid Roads 0.35 1957 5509
1906 Three powers 0.45 1952 4320
1717 Dominoes 0.32 1946 5925
1419 Graph Coloring 0.45 1942 4271
1521 Entropy 0.39 1940 4960
3661 Running 0.37 1936 5225
3342 Party at Hali-Bula 0.35 1930 5435
1580 String Matching 0.51 1929 3752
1702 Eva’s Balance 0.49 1927 3909
3498 March of the Penguins 0.45 1926 4230
1964 City Game 0.39 1924 4845
3734 Blocks 0.45 1923 4273
3331 The Idiot of the Year Contest! 0.52 1918 3643
2472 106 miles to Chicago 0.46 1913 4153
2661 Factstone Benchmark 0.51 1913 3747
3450 Corporate Identity 0.37 1912 5152
1985 Cow Marathon 0.5 1906 3790
1734 Sightseeing trip 0.38 1905 4984
2142 The Balance 0.43 1905 4347
2643 Election 0.46 1905 4065
2420 A Star not a Tree? 0.49 1901 3847
1208 The Blocks Problem 0.41 1897 4540
3189 Steady Cow Assignment 0.34 1893 5482
3525 Most Distant Point from the Sea 0.46 1887 4016
2263 Heavy Cargo 0.53 1885 3528
2800 Joseph’s Problem 0.26 1882 7237
3436 ACM Computer Factory 0.34 1881 5492
1060 Modular multiplication of polynomials 0.45 1880 4111
1781 In Danger 0.52 1878 3603
2507 Crossed ladders 0.38 1876 4886
1170 Shopping Offers 0.41 1873 4467
3494 Largest Submatrix of All 1’s 0.37 1872 5038
2282 The Counting Problem 0.53 1871 3509
1145 Tree Summing 0.23 1869 7978
2993 Emag eht htiw Em Pleh 0.66 1861 2801
3199 Uncle Jack 0.41 1851 4435
3618 Exploration 0.48 1851 3827
1966 Cable TV Network 0.47 1848 3927
2336 Ferry Loading II 0.5 1846 3628
2756 Autumn is a Genius 0.22 1845 8134
2429 GCD & LCM Inverse 0.18 1836 9871
1581 A Contesting Decision 0.71 1828 2573
2780 Linearity 0.23 1825 7873
2078 Matrix 0.51 1817 3499
1027 The Same Game 0.37 1809 4868
3662 Telephone Lines 0.36 1807 4943
2121 Inglish-Number Translator 0.38 1802 4632
1950 Dessert 0.37 1800 4802
1548 Robots 0.45 1797 3929
2049 Finding Nemo 0.23 1787 7725
3686 The Windy’s 0.42 1778 4159
3364 Black and white painting 0.68 1777 2591
3262 Protecting the Flowers 0.4 1776 4395
3511 Fermat’s Christmas Theorem 0.21 1774 8392
1132 Border 0.47 1772 3745
3185 The Water Bowls 0.39 1762 4444
3230 Travel 0.41 1761 4195
1284 Primitive Roots 0.57 1759 3061
1112 Team Them Up! 0.26 1758 6569
2101 Honey and Milk Land 0.55 1757 3154
2417 Discrete Logging 0.46 1756 3758
2085 Inversion 0.44 1755 3926
1390 Blocks 0.4 1748 4324
3183 Stump Removal 0.52 1748 3327
2286 The Rotation Game 0.33 1737 5215
2610 Dog & Gopher 0.42 1734 4100
3626 Mud Puddles 0.57 1734 2997
3322 Bloxorz I 0.33 1729 5155
3421 X-factor Chains 0.31 1729 5468
2960 S-Nim 0.52 1725 3273
1650 Integer Approximation 0.32 1724 5273
2959 Ball bearings 0.57 1722 2972
2955 Brackets 0.51 1716 3340
2680 Computer Transformation 0.38 1715 4502
3216 Repairing Company 0.26 1715 6385
3623 Best Cow Line, Gold 0.36 1712 4654
2894 Ancient Keyboard 0.55 1706 3073
3130 How I Mathematician Wonder What You Are! 0.53 1706 3199
1984 Navigation Nightmare 0.38 1703 4480
2082 Terrible Sets 0.52 1694 3250
1468 Rectangles 0.51 1687 3278
1584 A Round Peg in a Ground Hole 0.31 1683 5342
3107 Godfather 0.34 1672 4857
3404 Bridge over a rough river 0.4 1669 4076
2685 Numeral System 0.76 1667 2168
2624 4th Point 0.35 1661 4711
1691 Painting A Board 0.49 1660 3368
3378 Crazy Thairs 0.24 1660 6679
1958 Strange Towers of Hanoi 0.66 1656 2492
2629 Common permutation 0.3 1652 5423
3191 The Moronic Cowmpouter 0.52 1649 3132
1939 Diplomatic License 0.46 1648 3563
1692 Crossed Matchings 0.64 1640 2527
3071 Football 0.5 1637 3215
2677 Tour 0.44 1632 3648
2895 Best SMS to Type 0.42 1630 3869
2457 Part Acquisition 0.43 1628 3758
3974 Palindrome 0.35 1623 4554
3181 Dollar Dayz 0.39 1622 4155
3243 Clever Y 0.24 1618 6638
1389 Area of Simple Polygons 0.5 1612 3165
2750 Potted Flower 0.37 1610 4270
1040 Transportation 0.4 1608 3968
3286 How many 0’s? 0.53 1607 3003
3508 Hide That Number 0.3 1604 5329
1739 Tony’s Tour 0.46 1602 3435
1877 Flooded! 0.31 1602 5066
2763 Housewife Wind 0.25 1602 6293
3194 Equidivisions 0.58 1596 2722
1617 Crypto Columns 0.62 1593 2547
2552 Assistance Required 0.58 1593 2741
3386 Halloween Holidays 0.41 1591 3789
3903 Stock Exchange 0.35 1591 4499
1980 Unit Fraction Partition 0.39 1585 4058
2010 Moo University - Financial Aid 0.3 1577 5245
2947 Widget Factory 0.33 1574 4641
3111 K Best 0.26 1573 5876
1167 The Buses 0.27 1571 5703
3646 The Dragon of Loowater 0.5 1571 3117
1475 Pushing Boxes 0.34 1568 4559
1509 Glass Beads 0.58 1564 2696
1941 The Sierpinski Fractal 0.44 1564 3519
1436 Horizontally Visible Segments 0.36 1560 4266
1873 The Fortified Forest 0.28 1545 5429
2535 Very Simple Problem 0.37 1542 4148
1270 Following Orders 0.39 1541 3882
1951 Extra Krunch 0.25 1536 6125
2688 Cleaning Robot 0.41 1536 3728
2949 Word Rings 0.21 1531 6997
3260 The Fewest Coins 0.3 1529 5075
1694 An Old Stone Game 0.45 1527 3345
1180 Batch Scheduling 0.46 1521 3304
2021 Relative Relatives 0.43 1521 3475
3720 Occurrence of Digits 0.41 1521 3677
1484 Blowing Fuses 0.38 1515 3953
2684 Polygonal Line Search 0.62 1513 2426
3050 Hopscotch 0.71 1510 2109
2948 Martian Mining 0.61 1508 2447
3800 Repair Depots 0.74 1505 2009
1555 Polynomial Showdown 0.34 1504 4315
3036 Honeycomb Walk 0.68 1503 2183
1099 Square Ice 0.39 1499 3821
2495 Incomplete chess boards 0.61 1498 2441
2325 Persistent Numbers 0.48 1492 3076
3652 Persistent Bits 0.57 1490 2580
1474 Video Surveillance 0.44 1487 3363
1320 Street Numbers 0.55 1486 2673
2888 Magic Bracelet 0.32 1486 4573
1975 Median Weight Bead 0.5 1481 2911
2491 Scavenger Hunt 0.54 1476 2723
1243 One Person 0.66 1465 2189
1079 Ratio 0.37 1463 3932
2183 Bovine Math Geniuses 0.62 1463 2358
2313 Sequence 0.39 1460 3679
3444 Wavelet Compression 0.65 1458 2237
3709 K-Anonymous Sequence 0.31 1458 4597
2826 An Easy Problem?! 0.15 1455 9649
1128 Frame Stacking 0.33 1452 4306
3614 Sunscreen 0.34 1451 4179
1252 Euro Efficiency 0.43 1448 3351
2353 Ministry 0.32 1448 4513
2139 Six Degrees of Cowvin Bacon 0.46 1445 3117
3420 Quad Tiling 0.43 1443 3337
1365 Prime Land 0.46 1439 3125
1719 Shooting Contest 0.36 1439 3940
1127 Jack Straws 0.45 1438 3190
1946 Cow Cycling 0.55 1437 2592
2570 Fiber Network 0.45 1437 3126
1329 Circle Through Three Points 0.42 1435 3401
3744 Scout YYF I 0.27 1432 5237
1383 Labyrinth 0.37 1430 3770
1315 Don’t Get Rooked 0.63 1429 2240
2579 Blurred Vision 0.72 1429 1972
2917 Diophantus of Alexandria 0.34 1427 4091
2138 Travel Games 0.35 1426 3983
3002 Jackpot 0.33 1426 4271
1755 Triathlon 0.25 1424 5566
1737 Connected Graph 0.49 1423 2903
2940 Wine Trading in Gergovia 0.45 1423 3103
3697 USTC campus network 0.31 1421 4583
2369 Permutations 0.52 1419 2703
1021 2D-Nim 0.45 1418 3129
2402 Palindrome Numbers 0.37 1409 3734
2034 Anti-prime Sequences 0.45 1407 3079
2381 Random Gap 0.26 1403 5258
3913 Gnome Sequencing 0.68 1403 2045
1084 Square Destroyer 0.42 1402 3297
1150 The Last Non-zero Digit 0.29 1388 4778
1299 Polar Explorer 0.34 1388 3970
1248 Safecracker 0.55 1378 2494
3565 Ants 0.3 1378 4447
2887 Big String 0.23 1377 5855
3629 Card Stacking 0.4 1374 3376
2110 Mountain Walking 0.32 1368 4190
3445 Elementary Additions 0.54 1367 2490
1465 Multiple 0.21 1366 6262
1184 聪明的打字员 0.2 1365 6588
2096 Collecting Bugs 0.49 1364 2768
1198 Solitaire 0.35 1363 3818
2926 Requirements 0.33 1358 4001
3384 Feng Shui 0.3 1357 4404
1176 Party Lamps 0.34 1356 3946
2117 Electricity 0.33 1354 4027
3279 Fliptile 0.38 1353 3497
1053 Set Me 0.46 1352 2934
2441 Arrange the Bulls 0.38 1352 3548
2607 Fire Station 0.35 1351 3809
1782 Run Length Encoding 0.32 1350 4154
1970 The Game 0.26 1343 5032
1486 Sorting Slides 0.39 1342 3417
2160 Box 0.36 1341 3660
2425 A Chess Game 0.4 1336 3262
1769 Minimizing maximizer 0.39 1330 3352
2227 The Wedding Juicer 0.44 1330 3012
1140 Expanding Fractions 0.39 1329 3332
3767 I Wanna Go Home 0.42 1328 3113
2673 Kicc Wants to Move a Mountain! 0.26 1325 5091
1976 A Mini Locomotive 0.55 1321 2381
2748 Logs Stacking 0.31 1320 4209
1178 Camelot 0.46 1319 2811
2440 DNA 0.39 1318 3324
2907 Collecting Beepers 0.53 1313 2436
1033 Defragment 0.34 1311 3771
3425 Customer support 0.46 1311 2842
1673 EXOCENTER OF A TRIANGLE 0.39 1309 3314
2935 Basic Wall Maze 0.45 1308 2890
3978 Primes 0.38 1307 3426
1598 Excuses, Excuses! 0.34 1304 3765
2246 Matrix Chain Multiplication 0.63 1297 2053
2718 Smallest Difference 0.27 1290 4639
3145 Harmony Forever 0.24 1289 5219
3049 Securing the Barn 0.64 1288 1994
2041 Unreliable Message 0.61 1286 2097
2497 Strategies 0.48 1282 2627
2584 T-Shirt Gumbo 0.46 1281 2743
2613 Choose and divide 0.32 1279 3933
3239 Solution to the n Queens Puzzle 0.36 1278 3476
1192 最优连通子集 0.53 1275 2404
3592 Instantaneous Transference 0.22 1273 5722
2042 Lagrange’s Four-Square Theorem 0.45 1271 2821
2126 Factoring a Polynomial 0.51 1270 2451
3150 Cellular Automaton 0.4 1266 3148
1240 Pre-Post-erous! 0.61 1263 2051
2201 Cartesian Tree 0.38 1263 3239
3298 Antimonotonicity 0.43 1260 2901
1143 Number Game 0.4 1258 3135
1603 Risk 0.46 1253 2689
1686 Lazy Math Instructor 0.34 1252 3636
2454 Jersey Politics 0.25 1252 4991
3237 Tree 0.27 1249 4481
2724 Purifying Machine 0.28 1246 4363
3276 Face The Right Way 0.45 1246 2721
3301 Texas Trip 0.3 1246 4104
2241 The Tower of Babylon 0.56 1245 2208
3480 John 0.47 1244 2626
2860 Block game with the Little Prince 0.66 1242 1858
1451 T9 0.35 1241 3465
1848 Tree 0.34 1240 3609
3432 Count Squares 0.43 1240 2823
2537 Tight words 0.47 1238 2595
3167 Cow Patterns 0.37 1237 3330
1816 Wild Words 0.26 1233 4721
1925 Spiderman 0.19 1233 6311
2373 Dividing the Path 0.36 1232 3410
2008 Moo University - Team Tryouts 0.28 1231 4270
2668 Defending Castle 0.24 1231 5073
1520 Scramble Sort 0.48 1230 2558
2329 Nearest number - 2 0.3 1229 3968
3345 Bribing FIPA 0.3 1219 3937
1944 Fiber Communications 0.3 1218 4020
2573 Bridge 0.35 1217 3459
1590 Palindromes 0.34 1213 3484
3685 Matrix 0.25 1208 4697
1454 Factorial Frequencies 0.43 1199 2748
2437 Muddy roads 0.48 1194 2484
3039 Close Encounter 0.36 1193 3304
3696 The Luckiest number 0.26 1192 4446
1732 Phone numbers 0.32 1191 3694
1120 A New Growth Industry 0.47 1186 2508
3044 City Skyline 0.48 1181 2453
1375 Intervals 0.29 1180 4046
2004 Mix and Build 0.3 1179 3867
3045 Cow Acrobats 0.39 1175 2984
3078 Q 0.7 1175 1672
1701 Dissatisfying Lift 0.21 1174 5338
1962 Corporative Network 0.36 1173 3243
2817 WordStack 0.35 1171 3255
3275 Ranking the Cows 0.46 1170 2501
1690 (Your)((Term)((Project))) 0.37 1168 3114
3232 Accelerator 0.24 1168 4726
2379 ACM Rank Table 0.26 1166 4442
1408 Fishnet 0.63 1165 1823
2408 Anagram Groups 0.26 1164 4373
3579 Median 0.29 1163 3962
2918 Tudoku 0.54 1162 2115
1945 Power Hungry Cows 0.24 1160 4708
3046 Ant Counting 0.4 1155 2861
2459 Feed Accounting 0.54 1146 2099
2640 Playground 0.38 1145 2996
2218 Does This Make Me Look Fat? 0.46 1136 2462
3363 Annoying painting tool 0.66 1136 1703
2273 An Excel-lent Problem 0.64 1135 1756
1821 Fence 0.3 1130 3688
2074 Line of Sight 0.31 1129 3566
3417 Network 0.28 1129 3957
2967 Triangles 0.15 1128 7484
3340 Barbara Bennett’s Wild Numbers 0.36 1128 3121
2311 Cutting Game 0.36 1127 3054
2225 Asteroids! 0.37 1126 2986
3543 iChess 0.45 1125 2498
3781 Nth Largest Value 0.65 1117 1709
3581 Sequence 0.21 1116 5268
3190 Stall Reservations 0.35 1115 3101
2738 Two Ends 0.47 1114 2350
2626 Chess 0.46 1113 2411
1085 Triangle War 0.39 1110 2808
1034 The dog task 0.4 1104 2754
3037 Skiing 0.27 1103 4029
1634 Who’s the boss? 0.41 1102 2668
2295 A DP Problem 0.31 1102 3518
3916 Duplicate Removal 0.69 1102 1586
1434 Fill the Cisterns! 0.33 1101 3243
2540 Hotter Colder 0.41 1101 2664
3101 Astronomy 0.21 1100 5070
3728 The merchant 0.33 1099 3320
1239 Increasing Sequences 0.37 1098 2920
1031 Fence 0.33 1095 3267
3512 Incidental Points 0.22 1091 4766
1695 Magazine Delivery 0.48 1087 2221
2631 Roads in the North 0.48 1084 2220
1313 Booklet Printing 0.5 1078 2143
1380 Equipment Box 0.26 1077 4056
3753 根据关键字进行字符串拷贝 0.22 1074 4777
1090 Chain 0.33 1068 3231
2157 Maze 0.31 1068 3405
3257 Cow Roller Coaster 0.39 1067 2725
2526 Center of symmetry 0.44 1064 2380
3018 Giftbox 0.28 1064 3781
3213 PM3 0.34 1062 3041
2443 Set Operation 0.39 1060 2695
3768 Repeater 0.26 1058 3979
1675 Happy Birthday! 0.24 1057 4260
2038 Team Rankings 0.5 1057 2078
3228 Gold Transportation 0.35 1057 2971
3095 Linear Pachinko 0.73 1052 1426
3505 Tower Parking 0.62 1052 1676
3994 Probability One 0.68 1051 1524
1917 Automatic Poetry 0.5 1042 2048
1926 Pollution 0.26 1041 3923
3537 Crosses and Crosses 0.38 1041 2733
3487 The Stable Marriage Problem 0.43 1039 2372
3497 Assemble 0.32 1037 3236
1974 The Happy Worm 0.22 1036 4647
2973 Scrabble 0.57 1035 1801
3690 Constellations 0.19 1033 5366
2710 Consecutive Digits 0.61 1032 1685
3695 Rectangles 0.28 1032 3613
3716 Panda’s Birthday Present 0.65 1031 1568
3705 Reverse 0.31 1025 3214
1636 Prison rearrangement 0.45 1023 2254
2100 Graveyard Design 0.21 1020 4729
2897 Dramatic Multiplications 0.41 1019 2431
3310 Caterpillar 0.47 1019 2144
2259 Team Queue 0.37 1015 2676
3272 Cow Traffic 0.27 1015 3699
2991 Crane 0.27 1013 3737
2649 Factovisors 0.24 1011 4095
3034 Whac-a-Mole 0.3 1010 3343
1130 Alien Security 0.36 1008 2757
3700 Missile Defence System 0.23 1008 4273
2191 Mersenne Composite Numbers 0.47 1004 2095
3528 Ultimate Weapon 0.47 1004 2093
3347 Kadj Squares 0.39 1003 2570
1856 Sea Battle 0.35 998 2816
2179 Inlay Cutters 0.42 995 2367
3084 Panic Room 0.51 987 1909
2734 Queens, Knights and Pawns 0.49 983 1980
2922 Honeymoon Hike 0.3 983 3249
2264 Advanced Fruits 0.49 979 1968
2893 M × N Puzzle 0.27 977 3506
2646 The Trip 0.3 974 3165
3373 Changing Digits 0.32 974 3008
2508 Conic distance 0.41 972 2315
2106 Boolean Expressions 0.3 971 3145
3681 Finding the Rectangle 0.29 971 3295
1057 FILE MAPPING 0.49 970 1961
2564 Edit Step Ladders 0.37 967 2581
3012 A Number from Yanghui Triangle 0.41 967 2322
1932 XYZZY 0.28 964 3345
2065 SETI 0.61 964 1561
3612 Telephone Wire 0.36 962 2637
2137 Cowties 0.33 961 2870
2128 Highways 0.36 960 2613
2355 Railway tickets 0.35 960 2703
2722 Angle and Squares 0.41 960 2332
3377 Ferry Lanes 0.21 960 4387
3171 Cleaning Shifts 0.34 959 2753
3093 Margaritas on the River Walk 0.37 958 2539
3312 Mahershalalhashbaz, Nebuchadnezzar, and Billy Bob
Benjamin Go to the Regionals 0.4 958 2340
3600 Subimage Recognition 0.37 957 2555
3193 Cow Phrasebook 0.34 954 2794
2872 Spelling Be 0.32 951 2965
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1385 Lifting the Stone 0.34 945 2725
2795 Exploring Pyramids 0.45 943 2055
1117 Pairs of Integers 0.25 937 3733
2163 Easy Trading 0.45 937 2062
3226 String’s Puzzle 0.4 937 2327
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2208 Pyramids 0.32 923 2800
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1760 Disk Tree 0.36 894 2420
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3917 Rock, Paper, Scissors 0.61 891 1450
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2193 Lenny’s Lucky Lotto Lists 0.42 888 2090
3160 Father Christmas flymouse 0.33 888 2652
2567 Code the Tree 0.38 887 2306
2581 Exact Change Only 0.34 884 2588
3390 Print Words in Lines 0.53 884 1653
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3440 Coin Toss 0.27 876 3244
2908 Quantum 0.3 873 2832
2424 Flo’s Restaurant 0.31 872 2812
3715 Blue and Red 0.26 872 3244
1043 What’s In A Name? 0.35 871 2426
1406 Starship Hakodate-maru 0.62 871 1397
3639 Exchange Rates 0.35 870 2458
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2641 Billiard 0.61 836 1354
2772 Up the Stairs 0.45 836 1841
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3174 Alignment of the Planets 0.49 833 1679
3192 DNA Assembly 0.43 833 1930
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2465 Adventures in Moving - Part IV 0.35 830 2344
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3374 Cake Share 0.26 829 3139
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3928 Ping pong 0.37 825 2174
2818 Making Change 0.53 824 1536
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2978 Colored stones 0.47 812 1723
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2056 The Separator in Grid 0.3 811 2668
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3146 Interesting Yang Hui Triangle 0.47 808 1685
3244 Difference between Triplets 0.32 808 2502
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3175 Finding Bovine Roots 0.19 805 4056
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3407 Brookebond s’en va en guerre… 0.48 804 1659
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2951 Cake Cutting 0.54 791 1455
3367 Expressions 0.32 791 2405
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2683 Ohgas’ Fortune 0.61 748 1212
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2577 Interpreter 0.34 713 2068
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2620 Minimal coverage 0.3 688 2276
1678 I Love this Game! 0.38 687 1782
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2832 How Many Pairs? 0.36 655 1804
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3419 Difference Is Beautiful 0.3 633 2048
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3725 I know the k-th integer 0.21 627 2908
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3214 Heap 0.21 606 2785
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3369 Grocery store 0.39 602 1509
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2705 Overflowing Bookshelf 0.55 597 1080
3141 Distant Galaxy 0.31 597 1910
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2415 Hike on a Graph 0.43 588 1355
2504 Bounding box 0.41 587 1417
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2744 Atomic Car Race 0.48 580 1198
2964 Tourist 0.41 579 1411
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1169 Packing Rectangles 0.54 578 1064
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1826 The Best Farm 0.31 577 1830
2426 Remainder 0.18 577 3073
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1048 Follow My Logic 0.28 562 1950
1855 Mint 0.35 561 1581
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2152 Fire 0.5 557 1114
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3269 Building A New Barn 0.32 555 1725
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3343 Against Mammoths 0.32 554 1726
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2284 That Nice Euler Circuit 0.31 550 1770
2660 War on Weather 0.57 550 955
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2475 Any fool can do it 0.37 548 1462
1119 Start Up the Startup 0.24 545 2184
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3638 Moogle 0.45 544 1205
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3991 Seinfeld 0.45 538 1174
3065 Stargates 0.22 537 2381
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1078 Gizilch 0.38 534 1384
3657 Haybale Guessing 0.27 534 1954
2550 Zipf’s Law 0.3 531 1763
3195 Generalized Matrioshkas 0.29 531 1821
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4046 Sightseeing 0.21 527 2480
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2715 Paint Mix 0.33 525 1590
3729 Facer’s string 0.29 525 1754
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2645 Boastin’ Red Socks 0.24 524 2121
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2595 Min-Max 0.22 504 2198
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2131 Key Insertion 0.25 503 1990
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1874 Trade on Verweggistan 0.29 499 1707
3602 Typographical Ligatures 0.45 498 1104
1285 Combinations, Once Again 0.33 497 1488
2015 Permutation Code 0.44 497 1126
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1882 Stamps 0.35 495 1406
3316 Snakes on a Plane 0.37 495 1311
3605 Sheryl’s Circuit I 0.41 495 1193
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1708 Game 0.33 492 1485
2435 Navigating the City 0.54 492 902
3066 Maximum 0.6 490 808
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1997 Word Puzzle 0.44 489 1090
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2920 Mine Map 0.47 488 1017
2280 Amphiphilic Carbon Molecules 0.33 487 1447
2712 Netiquette 0.32 487 1493
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1400 Complicated Expressions 0.32 485 1502
3231 FlashGet 0.16 485 2918
1398 Complete the sequence! 0.51 484 945
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2254 Globetrotter 0.33 484 1438
2698 Servicing DVD Requests 0.3 484 1599
3456 Frobenius 0.5 484 953
3585 Accumulation Degree 0.24 484 1976
1644 To Bet or Not To Bet 0.31 482 1521
2609 Ferry Loading 0.28 482 1675
3092 Non-divisible 2-3 Power Sums 0.49 482 982
3925 Minimal Ratio Tree 0.36 482 1307
4047 Garden 0.35 482 1367
1566 Haiku Review 0.63 481 763
2466 Pairsumonious Numbers 0.5 481 957
2693 Chocolate Chip Cookies 0.25 481 1914
2737 Swamp Things 0.33 481 1434
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2500 Pia’s Party 0.24 480 1930
3317 Stake Your Claim 0.37 480 1291
2165 Gunman 0.36 479 1317
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1093 Formatting Text 0.23 478 2054
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3413 RPG 0.33 478 1426
3098 Frugal Search 0.47 477 1003
1808 Quadratic Residues 0.33 476 1426
3131 Cubic Eight-Puzzle 0.33 476 1422
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1501 Word-Search Wonder 0.38 474 1239
2174 Decoding Task 0.45 474 1050
4044 Score Sequence 0.38 474 1244
1660 Princess FroG 0.41 473 1140
2784 Buy or Build 0.42 473 1124
2493 Rdeaalbe 0.24 472 1908
2836 Rectangular Covering 0.27 471 1725
3765 Xiang Hex 0.5 471 926
1263 Reflections 0.41 470 1135
1480 Optimal Programs 0.36 470 1299
2490 Pimp My Ride 0.3 470 1564
3408 The Domino Principle 0.26 470 1805
2605 Simple game on a grid 0.52 469 897
2831 Can We Build This One? 0.37 466 1239
3736 Snipe the Sniper 0.36 465 1281
1103 Maze 0.4 464 1157
1765 November Rain 0.21 462 2135
4045 Power Station 0.39 462 1162
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3465 Battle 0.24 460 1864
1991 Turning in Homework 0.44 459 1030
3060 Make it Manhattan 0.42 459 1073
2257 Balancing Bank Accounts 0.47 458 969
2116 Death to Binary? 0.3 457 1487
3904 Sky Code 0.3 456 1482
2671 Jimmy’s Bad Day 0.32 455 1387
2786 Keep the Customer Satisfied 0.38 455 1183
3546 Sea battle 0.36 453 1240
1245 Programmer, Rank Thyself 0.37 452 1196
1618 Decorations 0.44 452 1009
3109 Inner Vertices 0.26 450 1718
3184 Finicky Grazers 0.27 449 1625
1293 Duty Free Shop 0.39 448 1138
3099 Go Go Gorelians 0.6 448 736
3863 Business Center 0.4 447 1102
1237 The Postal Worker Rings Once 0.63 445 701
3483 Loan Scheduling 0.53 445 826
2050 Searching the Web 0.21 444 2031
2276 Model Rocket Height 0.57 444 773
1137 The New Villa 0.32 443 1347
3314 Plaque Pack 0.46 443 943
1058 The Gourmet Club 0.3 442 1464
3401 String reduction 0.32 442 1342
2703 Maximum Area Covered by Rectangles 0.44 441 992
2952 Election 0.47 441 934
2658 Song 0.27 439 1602
1973 Software Company 0.42 438 1020
2133 Cow Imposters 0.26 437 1638
1231 The Alphabet Game 0.39 436 1105
2732 Countdown 0.33 436 1287
3786 Adjacent Bit Counts 0.82 435 525
1217 FOUR QUARTERS 0.45 434 950
3179 Corral the Cows 0.44 432 967
3593 Sea Base Exploration 0.27 432 1573
2937 Dihedral Groups 0.32 430 1336
3499 Containers 0.26 430 1608
2045 Molecular Formula 0.51 428 831
3412 Ray 0.21 428 2034
3485 Highway 0.45 427 935
3227 Mountains 0.27 425 1571
1888 Crossword Answers 0.46 424 913
3361 Gaussian Prime Factors 0.32 424 1310
2679 Adventurous Driving 0.28 422 1504
3760 魔兽世界(修订版) 0.23 422 1782
1234 Ball Toss 0.45 421 923
2197 Jill’s Tour Paths 0.29 420 1411
2862 Tornado! 0.37 420 1134
3970 Party 0.37 420 1116
2114 Boatherds 0.32 419 1280
3895 Cycles of Lanes 0.37 419 1124
1100 Dreisam Equations 0.2 418 2049
3516 Johnny Hates Math 0.12 418 3413
2720 Last Digits 0.2 417 2031
2928 A City of Skyscrapers 0.25 417 1618
2597 Line Segment Erase 0.28 416 1460
3290 WFF ‘N PROOF 0.49 416 840
1291 This Sentence is False 0.43 415 962
1025 Department 0.23 414 1761
3631 Cuckoo Hashing 0.34 414 1203
2511 The Top Shelf 0.29 413 1418
3739 Special Squares 0.27 413 1476
2692 Australian Voting 0.26 411 1545
2721 Suit Distribution 0.64 409 636
3783 Balls 0.7 408 578
1513 Scheduling Lectures 0.43 406 936
2637 WorstWeather Ever 0.2 406 1960
3503 Summits 0.36 406 1127
2118 Firepersons 0.45 405 900
1349 Coding of Permutations 0.43 404 930
2515 Birthday Cake 0.38 404 1046
3576 Language Recognition 0.26 403 1499
3790 Recursively Palindromic Partitions 0.73 403 547
3222 Edge Pairing 0.38 402 1047
2514 Ridiculous Addition 0.21 401 1887
2161 Chandelier 0.39 400 1009
2267 From Dusk till Dawn or: Vladimir the Vampire 0.31 399 1287
2642 The Brick Stops Here 0.3 398 1312
3068 “Shortest” pair of paths 0.38 398 1022
3462 Lucky Light 0.39 398 1017
2433 Landscaping 0.43 396 916
1568 Find the Winning Move 0.49 395 796
1931 Biometrics 0.39 395 994
1492 Up and Down Sequences 0.59 394 662
1747 Expression 0.62 394 628
2611 Gas Station Numbers 0.3 394 1292
3025 Rings 0.35 394 1109
3355 Boundary Points 0.17 394 2214
3541 Given a string… 0.21 393 1828
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2815 Context-Free Clock 0.37 392 1045
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2571 Global Roaming 0.52 390 744
3484 Showstopper 0.29 390 1328
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3923 Ugly Windows 0.3 387 1270
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3229 The Best Travel Design 0.26 385 1476
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2714 Random Walk 0.18 384 2037
1648 Countryside Highway 0.3 383 1245
2172 Bricks 0.3 383 1241
3112 Digital Biochemist Circuit 0.43 383 885
3492 Knapsack II 0.24 382 1550
2740 Book Replacement 0.46 381 824
2793 Cactus 0.28 381 1327
3452 Railway Transportation 0.46 381 818
1624 This Takes the Cake 0.51 380 731
1683 Puzzlestan 0.31 380 1206
2146 Confusing Login Names 0.34 380 1104
1030 Rating 0.22 377 1659
2596 Dice Stacking 0.25 377 1503
3747 Scout YYF II 0.24 377 1525
1819 Disks 0.23 376 1598
1853 Cat 0.24 376 1512
1515 Street Directions 0.53 375 696
3156 Interconnect 0.34 375 1083
3217 Eugenics 0.34 375 1078
3467 Cross Counting 0.28 375 1331
3907 Build Your Home 0.59 375 631
3713 Transferring Sylla 0.23 374 1576
2706 Connect 0.32 372 1134
3523 The Morning after Halloween 0.2 372 1830
3535 A+B 0.45 372 816
2469 Stack ‘em Up 0.39 371 948
1481 The Die Is Cast 0.4 370 909
1757 Binary Search 0.37 370 980
3212 Rescue Alice 0.24 370 1533
2790 Consecutive ones 0.64 369 571
4052 Hrinity 0.26 369 1418
3756 Chess Game 0.33 368 1104
1707 Sum of powers 0.48 367 760
3091 Triangular N-Queens Problem 0.44 366 830
3789 Binary Clock 0.69 366 528
2921 Knights of the Round Table 0.25 365 1417
3182 The Grove 0.47 365 769
3684 Physics Experiment 0.35 365 1031
1337 A Lazy Worker 0.33 364 1077
2199 Rate of Return 0.43 364 829
2906 Moving Pianos 0.36 363 990
3056 The Bavarian Beer Party 0.36 363 999
3197 Continuous Fractions 0.37 363 957
3271 Lilypad Pond 0.26 363 1377
3334 Connected Gheeves 0.36 363 995
1114 Chemical Reactions 0.52 362 687
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2467 Snow Clearing 0.44 362 807
3057 Evacuation 0.25 362 1415
1104 Robbery 0.38 361 926
3004 Subway planning 0.26 361 1339
3015 Expected Difference 0.25 361 1394
3429 Geometry with a ruler 0.22 361 1637
2510 Tullia and Chocolate II 0.21 360 1661
2775 The Number of the Same BST 0.41 360 874
1148 Utopia Divided 0.43 359 820
1394 Railroad 0.33 359 1061
1827 A Bunch Of Monsters 0.37 358 947
2735 Reliable Nets 0.39 358 917
3905 Perfect Election 0.5 358 708
2473 Decorate the wall 0.38 357 939
3459 Projects 0.44 357 802
1647 One-move checkmate 0.23 356 1484
3016 K-Monotonic 0.33 354 1047
2512 Chessboard in FEN 0.42 353 829
2639 Necklace Decomposition 0.38 353 908
2966 A safe way 0.19 352 1799
3287 The Trip, 2007 0.36 352 961
2858 Crabbles 0.23 351 1465
3394 Route Planning 0.33 351 1052
3588 The Downloading Task 0.25 351 1367
3763 Tour in Wonder Land 0.3 350 1166
1362 Skew Binary 0.56 349 616
2857 Flipping Colors 0.52 349 665
2173 Cricket Field 0.4 348 864
3241 Object Clustering 0.22 348 1547
3524 Bug Hunt 0.5 348 692
2252 Equation Solver 0.57 345 602
1878 Jill’s Bike 0.25 344 1353
2427 Smith’s Problem 0.39 344 865
3209 From Pythagoras to … 0.12 344 2670
3757 Simple Distributed storage system 0.17 344 1971
2713 Tire Dimensions 0.4 342 843
2998 Hardware 0.36 342 937
3106 Flip and Turn 0.33 342 1014
3443 Team Work 0.3 342 1121
1832 连环锁 0.31 340 1084
2009 Moo University - Emergency Pizza Order 0.24 340 1402
2036 I Conduit! 0.18 340 1802
1418 Viva Confetti 0.42 339 804
2383 Circle Drawing 0.15 339 2196
2741 Colored Cubes 0.53 339 634
1460 Firefighters 0.32 338 1031
1487 Single-Player Games 0.28 337 1197
2180 Bale Figures 0.47 337 717
2588 Snakes 0.33 337 1003
2767 Bowlstack 0.4 337 829
3423 Automaton optimization 0.54 337 616
1778 All Discs Considered 0.37 335 889
3532 Resistance 0.32 335 1039
3609 Reset Sequence 0.38 335 872
1903 Jurassic Remains 0.33 334 989
2819 TN’s Kingdom I - Establishment 0.17 333 1873
2980 Do it! 0.29 333 1120
3346 Treasure of the Chimp Island 0.44 333 741
1476 Always On the Run 0.5 331 653
1578 Instruens Fabulam 0.47 331 700
2330 Advanced ASCII Cubes 0.5 331 659
2384 Harder Sokoban Problem 0.41 331 800
1271 Nice Milk 0.24 330 1327
2647 Doublets 0.38 330 857
3554 Almost the shortest route 0.26 329 1262
1574 The Triangle Game 0.58 328 565
1795 DNA Laboratory 0.19 328 1687
1955 Rubik’s Cube 0.5 328 646
4048 Chinese Repeating Crossbow 0.29 328 1096
1264 SCUD Busters 0.43 327 751
2547 No Tipping 0.37 327 868
3424 Better security 0.18 327 1764
1886 Borrowers 0.24 326 1330
2794 Double Patience 0.53 326 609
2809 It’s My Derivative 0.35 325 926
1791 Paper Cutting 0.56 324 573
2168 Joke with Turtles 0.26 324 1224
1993 Caleidoscope 0.46 323 696
1327 Moving Object Recognition 0.6 322 534
2144 Leaky Cryptography 0.73 322 436
2970 The lazy programmer 0.25 322 1287
2870 Light Up 0.39 321 820
2944 Wild West 0.29 321 1089
3245 Sequence Partitioning 0.26 321 1205
1754 Buffer Manager 0.37 320 852
3029 Tour Guide 0.38 320 823
3196 Babylonian Roulette 0.61 320 521
3557 Map Generator 0.26 320 1197
3428 Formatting function 0.13 319 2294
2445 Squares 0.38 318 836
1409 77377 0.37 316 845
1885 Uncompress 0.34 316 923
1916 Rat Attack 0.32 316 987
3534 Escape of Life and Death 0.12 316 2537
1173 Bar Codes 0.35 315 891
3360 Take a Walk 0.22 315 1425
3754 模拟Modbus协议 0.44 315 707
1259 The Picnic 0.27 314 1123
2615 Suffidromes 0.21 314 1451
3489 Knapsack I 0.29 314 1067
3977 Subset 0.17 314 1806
1735 A Game on the Chessboard 0.39 313 801
1682 Clans on the Three Gorges 0.5 312 612
2119 God of the Vile Baskers 0.33 311 932
2697 A Board Game 0.67 311 460
2805 Pegs 0.38 311 812
1097 Roads Scholar 0.37 310 831
1302 Blue Gene, Jr. 0.66 310 468
2086 Land Division Tax 0.44 310 701
2628 Table Legs 0.39 310 794
1072 Puzzle Out 0.27 309 1117
3711 Mayan Pyramid 0.16 309 1873
2630 Security Panel 0.35 308 879
2725 Finding Treasure 0.2 308 1493
3021 e-Coins 0.49 308 619
3200 Babel Towers 0.29 308 1042
3533 Light Switching Game 0.59 308 519
1619 EKG Sequence 0.46 307 664
2598 Match Throwing Game 0.31 306 987
3000 Frogger 0.33 306 922
3471 Integral Roots 0.13 306 2273
2143 Make a Sequence 0.61 304 493
2695 Rick the Persistent Gnu 0.41 304 738
1266 Cover an Arc. 0.37 303 804
1943 Hall of Fountains 0.37 302 812
2414 Phylogenetic Trees Inherited 0.61 301 487
1872 A Dicey Problem 0.33 300 893
2088 Long Night of Museums 0.21 300 1370
3688 Cheat in the Game 0.31 300 955
2303 Russian Dolls 0.25 299 1194
2899 Fortune at El Dorado 0.25 299 1160
3633 Copying DNA 0.36 299 819
1685 Color Tunnels 0.53 298 562
2652 Ferry Loading III 0.32 298 923
1353 Color Change of Go Game Pieces 0.64 297 461
1229 Wild Domains 0.33 296 893
1522 N-Credible Mazes 0.54 296 546
3246 Game 0.15 296 1955
2432 Around the world 0.35 295 820
1052 Plato’s Blocks 0.4 294 732
1736 Block Town 0.4 293 727
1752 Advertisement 0.37 293 775
2759 Distributing tasks 0.23 293 1262
3288 Mall Mania 0.31 293 916
1262 Input 0.43 292 675
1718 River Crossing 0.4 292 714
2600 Geometrical dreams 0.55 292 527
3539 Elevator 0.26 292 1094
2522 Partitioning for fun and profit 0.3 291 947
3409 Broken line 0.16 291 1714
1086 Unscrambling Images 0.4 290 719
2340 Memory management 0.41 290 702
2883 Points 0.32 290 887
2200 A Card Trick 0.39 289 737
1139 Cat and Mouse 0.3 288 938
1968 Booklets 0.36 288 798
2651 So you want to be a 2n-aire? 0.68 287 417
1282 庆典的日期 0.12 286 2381
1938 California Jones and the Gate to Freedom 0.41 286 688
2672 Hotkeys 0.2 286 1373
3123 Ticket to Ride 0.47 286 603
2461 Magic Bitstrings 0.44 285 644
3058 Decompression 0.49 285 576
2520 DNA Sequence Alignment 0.12 284 2344
3567 Cactus Reloaded 0.31 284 905
1777 Vivian’s Problem 0.35 283 791
3726 Windy’s ABC 0.44 283 629
1420 Spreadsheet 0.47 282 600
2901 Hotel 0.32 282 866
1304 World’s Worst Bus Schedule 0.35 281 782
3082 ‘Roid Rage 0.3 281 919
2292 Optimal Keypad 0.5 280 557
1709 Crossword 0.3 279 904
3028 Shoot-out 0.31 279 875
1388 Hinge Node Problem 0.67 278 411
3643 Friend or Foe? 0.29 278 945
3719 Art of Balance 0.31 278 882
2266 Quadtree 0.32 277 858
3102 Bee Garden 0.24 277 1130
4001 Xiangqi 0.26 277 1032
2357 Labyrinth 0.5 276 547
2670 The Sorcerer’s Stone 0.16 276 1722
2953 Nash Equilibrium 0.57 276 483
2946 The Warehouse 0.22 275 1245
3708 Recurrent Function 0.26 275 1041
3215 Median of Lines 0.2 274 1344
2089 Magic Trick 0.63 272 428
2317 SHAKE 0.49 272 555
1371 Tin Cutter 0.35 271 767
1684 Dynamic Declaration Language (DDL) 0.26 271 1021
2169 Kingdom of Magic 0.27 271 997
3797 Tiling a Grid With Dominoes 0.68 271 398
1857 To Europe! To Europe! 0.34 270 787
1996 The Highest Profits 0.46 270 581
2122 Japan Plotter Driver 0.45 270 592
3205 Ikki’s Story II - War with TN 0.3 270 889
3291 Cousins 0.36 269 747
1168 The Circle 0.34 268 769
1613 Cave Raider 0.3 268 870
1116 Library 0.33 267 794
2489 Line Segments 0.17 267 1556
3493 Chessboard Puzzle 0.5 267 525
3787 Convex Hull of Lattice Points 0.62 267 425
1055 BULK MAILING 0.28 266 926
1489 Egyptian Multiplication 0.27 266 956
3035 Random Walking 0.32 266 810
2206 Magic Multiplying Machine 0.34 265 758
2691 Request for Proposal 0.46 265 570
1680 Fork() Makes Trouble 0.65 264 402
2848 Kindergarten Graduation 0.4 264 658
1074 Parallel Expectations 0.31 262 832
1429 Alice and Bob 0.28 262 926
1710 Magic of David Copperfield 0.45 262 570
3911 Internet Service Providers 0.48 261 534
1729 Jack and Jill 0.26 260 997
1277 Beer Land 0.47 259 542
1348 Computing 0.14 259 1738
1720 SQUARES 0.38 259 674
3472 Holey Square Tiling 0.3 259 850
3741 Number System Converter 0.21 259 1225
3137 Enjoyable Commutation 0.27 257 940
1588 Reverse Roman Notation 0.36 256 698
2382 Radio Coverage 0.26 256 963
2802 Plinko 0.47 256 542
2066 Minimax Triangulation 0.31 255 820
2290 House Numbers 0.25 253 986
3908 Quick answer 0.32 253 784
2868 Computer DJ 0.24 252 1011
2938 Economic Phone Calls 0.34 252 732
2625 Coupons 0.59 251 421
2760 End of Windless Days 0.18 251 1350
3482 ‘JBC’ 0.21 251 1144
2633 Funny Games 0.22 250 1129
3163 King of Fighters 0.18 249 1327
1081 You Who? 0.35 248 699
1438 One-way Traffic 0.31 248 784
3043 Walk the Talk 0.42 248 582
4022 ASCII Area 0.43 248 565
2791 Area 51 0.21 247 1146
3201 Little Quilt 0.33 247 745
1214 “Accordian” Patience 0.44 246 559
3542 History of Football 0.34 246 705
3550 AT – sequence 0.38 246 642
3448 Roman Expressions 0.46 245 527
1633 Gladiators 0.49 244 494
2856 Medals 0.3 244 813
1790 Base Numbers 0.35 243 678
2052 Fun Game 0.23 243 1056
2341 Spell checker 0.33 243 724
3220 Context-Free Languages 0.27 243 878
3402 Add a queen 0.28 243 860
1529 Shipping Routes 0.55 242 440
2211 Photograph 0.69 242 350
3188 Cellphones 0.37 242 652
3434 Terrarium 0.27 242 875
3817 Robot Challenge 0.36 242 671
1395 Cog-Wheels 0.12 241 1954
2474 European railroad tracks 0.28 241 847
2889 Unique Solution 0.23 241 1024
3010 The Genome Database of All Space Life 0.3 241 798
3649 Typesetting 0.41 241 576
1238 Arbitrage 0.43 240 552
2957 Planet Hunting 0.44 240 541
3001 Gallup 0.51 240 463
3959 Alignment of Code 0.35 240 679
1537 Identifying Legal Pascal Real Constants 0.36 239 648
1662 CoIns 0.32 239 738
3266 Cow School 0.29 239 805
1433 Exchanges 0.53 238 448
2053 Square 0.26 238 904
2733 The Game of Efil 0.39 238 609
3803 Repeated Substitution with Sed 0.42 238 557
2854 Educational Journey 0.48 237 491
1339 poker card game 0.31 236 755
1890 Switching Channels 0.56 236 421
3530 A Modular Arithmetic Challenge 0.13 236 1797
1672 Fully Diversified Sequences of Sets 0.51 235 459
1998 Lloyd Fifteen Puzzle 0.38 235 614
3053 Bowling 0.28 235 814
1818 ATP 0.34 234 675
2032 Square Carpets 0.34 234 679
2108 Lazy Pianist 0.16 234 1418
2745 Network Mess 0.42 234 555
3814 Museum Guards 0.2 234 1124
1172 Street Race 0.21 233 1068
1356 Grandpa’s Other Estate 0.52 233 443
1697 The Erythea Campaign 0.37 232 619
3063 Sherlock Holmes 0.31 232 733
1539 Evaluating Simple C Expressions 0.43 231 532
3595 Full Steiner Topologies 0.39 231 590
1344 Tree Size Problem 0.56 230 405
3178 Roping the Field 0.3 230 764
3897 Maze Stretching 0.27 230 837
2022 Syntax Included 0.27 229 839
3135 Polygons on the Grid 0.34 229 663
3441 Vacation Rentals 0.25 229 883
3927 Priest John’s Busiest Day 0.34 229 670
1153 SAFE 0.24 228 935
1387 The Constraint Densest Submatrix 0.23 228 974
1621 Polly Nomials 0.47 228 479
2148 Color the Map 0.32 228 692
2321 GYM 0.58 228 392
3218 Alignments 0.16 228 1425
3992 Tiles of Tetris, NOT! 0.28 228 802
2326 Major Scales 0.59 227 381
2462 Cutting a polygon 0.29 227 778
2729 Robocode 0.18 227 1231
1219 L-I-N-G-O: LINGO 0.22 226 1011
1366 Word 0.26 226 840
1377 Good Approximation Problem 0.23 226 976
2205 Self-Replicating Numbers 0.33 226 665
2345 Central heating 0.45 224 487
2974 Convex area 0.46 223 478
1336 The K-League 0.34 222 643
1831 不定方程组 0.31 222 712
1900 Game 0.3 222 736
3598 PopKart 0.23 222 945
3778 An Odd Award Rule 0.36 222 606
3894 System Engineer 0.42 222 519
1340 The Longest Detour Problem 0.34 221 632
1601 Pizza Anyone? 0.36 221 610
2338 Basic 0.24 220 885
2103 Jackpot 0.2 218 1048
3802 Cubist Artwork 0.65 218 331
2040 Translations 0.37 217 581
2494 Acid Text 0.24 217 893
3606 Sheryl’s Circuit II 0.42 217 507
1181 Bus Terminals 0.36 216 591
1646 Double Trouble 0.46 216 460
1880 Variable Radix Huffman Encoding 0.32 215 665
2048 Monster Trap 0.26 215 798
2178 Heroes Of Might And Magic 0.26 215 807
3005 Exploding CPU 0.43 214 491
3573 I18n 0.29 214 731
1530 Slurpys 0.59 213 360
2669 Explore the Pirate’s Cave 0.19 213 1102
1622 Pushing Boxes 0.54 212 390
1898 Entropy 0.23 212 886
2997 IVXLCDM 0.26 212 809
2124 Crankshaft 0.25 211 830
2561 Language Cardinality 0.23 211 912
3909 Lucky numbers 0.32 211 656
3993 Not So Flat After All 0.36 211 586
1453 Delta Encoding and Decoding 0.3 210 700
2736 Square Count 0.31 210 666
3148 ASCII Art 0.31 210 659
3538 Domestic Networks 0.28 210 745
3746 Teacher YYF 0.38 210 548
2574 Saskatchewan 0.25 209 805
2589 Snap 0.39 209 525
3285 Point of view in Flatland 0.25 209 804
2843 Cutting Cake 0.27 208 763
2792 Brackets Removal 0.34 207 593
3989 A hard Aoshu Problem 0.5 207 406
1382 The Proper Key 0.39 206 518
2217 Secretary 0.36 206 563
3922 A simple stone game 0.51 206 403
1290 Grandpa’s Rubik Cube 0.64 205 318
2875 In Defence of a Garden 0.36 205 565
2994 Failing Roads 0.43 205 469
1612 The Geodetic Set Problem 0.36 204 564
3121 The SetStack Computer 0.21 204 965
3712 Edges and More Edges 0.23 204 878
3910 GCD Determinant 0.54 204 375
1602 Zip 0.21 203 955
2102 Incredible! Impossible! 0.3 203 662
2582 Finding Nemo 0.46 203 432
3882 Stammering Aliens 0.28 203 702
2094 Angry Teacher 0.18 202 1068
2678 Mothy 0.24 202 820
2708 Time to Graduate 0.42 201 473
1242 Plugged In 0.54 200 368
3771 World Islands 0.25 200 771
3914 DuLL 0.71 199 277
1649 Market Place 0.29 198 678
2580 The Door/Key Problem 0.31 198 627
2702 Can a Complicated Program Go Wrong? 0.27 198 729
3776 Passing the Message 0.54 198 364
2592 Standard Point System 0.26 197 753
1076 Bowl 0.22 196 878
1110 Double Vision 0.53 196 363
2285 The Floor Bricks 0.43 196 453
2476 Game schedule required 0.33 196 592
2743 Mobile Computing 0.32 196 611
3405 Convex hull 0.23 195 843
2834 Where Are You? 0.27 194 702
3832 Posters 0.26 194 733
1215 Gondwanaland Telecom 0.33 193 573
1415 Map of Ninja House 0.34 193 554
3607 Distribution of Toys 0.16 193 1193
2170 Lattice Animals 0.36 192 520
2690 Yahtzee 0.36 192 522
2900 Griddy Hobby 0.36 192 529
4014 Dice 0.43 192 439
1267 Fence 0.23 191 801
3110 Jenny’s First Exam 0.26 191 711
3553 Task schedule 0.62 191 304
3572 Hanoi Towers 0.5 191 378
1506 Substitution Cipher 0.18 190 1050
3293 Rectilinear polygon 0.09 190 1935
1073 The Willy Memorial Program 0.31 189 604
1688 Dolphin Pool 0.46 189 405
2064 Pipes 0.49 189 383
1599 Station Balance 0.39 188 481
2308 Dearboy’s Puzzle 0.16 188 1122
2327 Dumb Bones 0.58 188 324
2333 Beach cut 0.21 188 891
1307 Mapping the Route 0.41 187 447
2035 Hit or Miss 0.4 187 458
3967 Ideal Path 0.14 187 1330
1854 Evil Straw Warts Live 0.27 186 672
2270 Quadtree II or: Florida Jones strikes back 0.52 186 351
1444 Parallelepiped walk 0.23 184 774
1800 Magic Trick 0.22 184 805
3934 Queue 0.44 184 418
2335 Temple of Dune 0.32 183 567
2525 Text Formalization 0.18 183 982
2754 Similarity of necklaces 2 0.28 183 639
2925 Kick-Tipp 0.38 183 475
2979 RSI 0.49 183 367
3410 Split convex polygon 0.29 183 618
3850 Simple Polygon 0.31 183 580
3869 Headshot 0.53 183 340
1255 Floors 0.41 182 441
1669 It’s Logical 0.3 182 603
3284 Eventually periodic sequence 0.27 182 655
3873 Trick or Treat 0.27 182 668
1211 Traffic Lights 0.44 181 404
1381 Secret Code 0.36 181 502
1792 Hexagonal Routes 0.42 181 427
2156 National Day Celebration 0.43 181 413
2746 Bingo 0.39 181 463
3119 Friends or Enemies? 0.41 181 432
3426 Doors and… more doors 0.39 181 453
3968 Jungle Outpost 0.24 181 747
1457 Lord of the Ring 0.33 180 534
3470 Walls 0.15 180 1139
1462 Random Walk 0.24 179 721
1768 Hang or not to hang 0.25 179 714
2439 Disconnect the Orange!? 0.43 179 410
1367 Time 0.32 178 553
1370 Gossiping 0.42 178 422
1518 Problem Bee 0.51 178 346
1535 Forgetful 0.24 178 739
3815 The Ninja Way 0.24 178 725
3987 Computer Virus on Planet Pandora 0.19 178 919
1075 University Entrance Examination 0.29 177 593
1514 Metal Cutting 0.42 176 418
2372 D++ Again 0.34 176 510
2518 Little guys’ game 0.3 176 571
2881 Wiping Words 0.39 176 446
2933 Explaining the Stock Market 0.24 176 708
4002 Alice’s mooncake shop 0.31 176 566
1378 Power Cable Problem 0.51 175 339
1461 Binary Polynomials 0.43 175 401
1508 Skyscraper Floors 0.21 175 810
1640 Poly-polygonal Numbers 0.36 175 475
1895 Bring Them There 0.25 175 699
2896 Changing Phone Numbers 0.2 175 841
4049 Chess 0.25 175 687
3309 Unlucky Luke! 0.27 174 639
3562 “Roman” corridor 0.36 174 479
3900 The Robbery 0.1 174 1679
1098 Robots 0.32 173 530
1227 RoboContest 0.32 173 530
2220 Treasure Hunters 0.58 173 295
3990 Fermat Point in Quadrangle 0.24 173 700
2519 Cutting Necklace 0.13 172 1281
2529 Queuing at the doctors 0.35 172 488
2789 Pixel Shuffle 0.41 172 414
3350 Bowling for Numbers++ 0.24 172 695
1524 Cowculations 0.67 171 253
1576 Colorville 0.56 171 302
1813 Overlapped Shapes 0.3 171 565
2644 Maze 0.19 171 889
3451 Money Money Money, Must Be Funny 0.39 171 431
3324 Lucas-Lehmer Test 0.22 170 769
3514 The Writers’ Club 0.22 170 764
1341 The Strongest Subchains 0.23 169 707
1374 Crosswords 0.37 169 445
2548 Subway 0.48 169 345
2880 Fixing Codes 0.17 169 972
4016 Flat 0.54 169 309
1628 Deduction 0.29 168 576
2222 Deeper Blue 0.37 167 447
3847 Moving to Nuremberg 0.28 167 583
2861 Cycle with 6 vertices 0.39 166 419
3454 Hypertheseus 0.57 166 289
3732 Paint Me Less 0.19 166 866
3853 Painting 0.26 166 616
2563 Demerit Points 0.36 165 450
3893 Hard-working Student 0.35 165 463
1494 Sunrise 0.43 164 373
1507 Commedia dell’ arte 0.4 164 409
2233 GAME AGAIN! 0.3 164 536
3418 Quadratic Functions 0.22 164 734
3548 Restoring the digits 0.3 164 536
3727 Newton’s Method 0.15 164 1073
3831 Open-air shopping malls 0.34 164 480
1550 Treadmill 0.53 163 305
3023 Submarines 0.44 163 364
1206 Servers 0.36 162 449
1310 Nonstop Travel 0.33 162 481
1440 Varacious Steve 0.46 162 352
2090 Two-Stacks Solitaire 0.24 162 662
2434 Waves 0.41 162 395
3033 Traveling Salesman 0.41 162 387
1134 Hexagon 0.51 161 313
2055 Kid’s Problem 0.23 161 697
3453 Soccer Tournament 0.2 161 793
1213 Roman Numerals 0.59 160 271
1545 Galactic Import 0.49 160 321
2483 Greatest Common Subtree 0.45 160 354
3306 Busy Airport 0.27 160 577
3391 The Bug Sensor Problem 0.1 160 1476
1334 Two Mountaineers 0.42 159 371
1549 Bright Bracelet 0.23 159 666
1570 Exchange Rates 0.51 159 308
1749 Lock Manager 0.41 159 379
1805 Friends 0.26 159 606
2011 Primary X-Subfactor Series 0.45 159 350
3351 Gerrymandering 0.26 159 600
1726 Tango Tango Insurrection 0.29 158 536
2026 As the Crow Flies 0.52 158 299
3319 Dragon Slayer Qualification Exam 0.19 158 819
3996 Air Strike 0.32 158 484
1478 Island of Logic 0.31 157 496
1608 Banal Tickets 0.11 157 1417
3813 Euclid 0.25 157 609
3985 Knight’s Problem 0.17 157 880
3323 Bloxorz II 0.19 156 781
1133 Stars 0.2 155 769
1495 LED Test 0.44 155 350
1774 Fold Paper Strips 0.28 155 552
1810 Covering 0.16 155 966
2477 Help the problem setter 0.39 155 394
1355 Selecting the Optimal Teaching Fiends 0.14 154 1043
3296 Rinse 0.3 154 507
3855 Blast the Enemy! 0.56 154 271
1767 Which is Next 0.31 153 491
2523 ASCII Labyrinth 0.47 153 322
2557 Fold 0.44 153 341
3341 Calculating Taxi Fare 0.34 153 438
3502 Flight Safety 0.2 153 729
3920 RIPOFF 0.65 153 235
3926 Parade 0.23 153 661
3997 Stock Chase 0.24 153 615
1758 Frontier 0.42 152 357
1783 Fractran 0.32 152 470
2145 Pathological Paths 0.54 152 280
3526 The Teacher’s Side of Math 0.26 152 584
3647 Tournament 0.22 152 665
3862 Asteroids 0.31 152 481
1667 Peg Game 0.25 151 604
2618 Cube in Labyrinth 0.27 151 556
2667 Barber’s problem 0.22 151 658
3963 Evacuation Plan 0.22 151 657
1196 Twofive 0.39 150 384
1216 Simulation Wizardry 0.64 150 234
2347 Equations 0.21 150 714
2866 Optical Fiber 0.46 150 322
3788 Interior Points of Lattice Polygons 0.68 150 220
1343 Rooted Trees Isomorphism 0.3 149 483
2727 Special Judge 0.19 149 761
4000 National Treasures 0.29 149 507
2020 MisLED 0.27 148 529
2202 Strange Graph 0.21 148 704
3455 Cheesy Chess 0.37 148 391
3805 Separate Points 0.37 148 391
4012 Black Square 0.19 148 768
1162 Building with Blocks 0.41 147 357
3865 Database 0.19 147 748
1538 Extrapolation Using a Difference Table 0.57 146 256
1851 Map 0.22 146 657
2742 Organize Your Train 0.28 146 520
2825 Perfect Permutation 0.45 146 324
3395 Shift Cipher 0.15 146 947
3642 Carpool 0.22 146 660
2701 Lapux the Floating Island 0.33 145 428
2822 TN’s Kingdom IV - Collapse 0.23 145 605
3430 Pizza schedule 0.35 145 411
3849 Settlers of Catan 0.51 145 279
1121 Algernon’s Noxious Emissions 0.46 144 308
3644 Gangs 0.33 144 427
3718 Facer’s Chocolate Dream 0.37 144 388
3835 Columbus’s bargain 0.28 144 510
1359 Spacecraft Malfunction 0.35 143 405
1407 e-Market 0.37 143 385
3886 Baby’s Blocks 0.5 143 283
3986 Math teacher’s homework 0.56 143 251
2164 Find the Border 0.28 142 503
3995 Hop — Don’t Walk! 0.18 142 758
3506 Walk 0.32 141 436
3779 Single CPU, multi-tasking 0.3 141 469
1713 Divide et unita 0.35 140 393
1796 Extra Terrestrial PISA Test 0.42 140 333
2332 One is good, but two is better 0.41 140 341
2757 Beautiful Numbers 0.21 140 647
1652 Holey Cloth 0.36 139 377
2412 Equidistance 0.46 139 299
2765 Declaration of Content 0.3 139 457
3743 LL’s cake 0.26 139 529
1070 Deformed Wheel 0.22 138 622
1352 Quantity of White Mice 0.29 138 465
1558 Board Silly 0.52 138 264
1623 Squadtrees 0.36 138 375
2616 Origami 0.5 138 276
3120 Sudoku 0.46 138 299
3521 Geometric Map 0.42 138 327
3583 Text Message Formatting 0.14 138 955
3999 Kind of a Blur 0.21 138 644
1368 Puzzle 0.25 137 542
1551 Data Mining? 0.57 137 237
1983 Name the Crossing 0.44 137 305
2213 Code 0.63 137 215
2320 SHEET 0.41 137 329
2816 Right-Hand Rule 0.28 137 475
2830 Max Sequence II 0.14 137 972
3447 Calendar of Events 0.22 137 602
3495 Bitwise XOR of Arithmetic Progression 0.21 137 640
3881 Happy Telephones 0.64 137 213
3962 Dome of Circus 0.22 137 605
4003 Bob’s Race 0.32 137 426
2149 Inherit the Spheres 0.39 136 341
2604 Preparing an article 0.25 136 538
4020 John’s Inversions 0.38 136 353
4023 Binary Encoding 0.46 136 293
1712 Flying Stars 0.36 135 370
2931 Procrastination 0.25 135 527
1123 For the Porsche 0.36 134 364
1197 Depot 0.31 134 428
2873 Apply a Cold Compress 0.41 134 325
3392 Pitcher Rotation 0.25 134 524
3717 Decrypt the Dragon Scroll 0.29 134 461
3845 Fractal 0.4 134 327
3892 RSA Factorization 0.27 134 490
3940 Grey Area 0.5 134 263
1301 The Umbrella Problem: 2054 0.5 133 265
2783 On Storing Clothes 0.28 133 469
2844 Sum and Product 0.12 133 1093
3022 The Uxuhul Voting System 0.4 133 326
1557 Mapmaker 0.68 132 192
3988 Selecting courses 0.33 132 390
1616 Harmonic Periods 0.37 131 349
2162 Document Indexing 0.18 131 723
2532 Burned Calendar 0.32 131 405
1532 Mixed Numbers 0.18 130 712
1803 Box Art 0.14 130 901
1822 Fence2 0.42 130 306
2913 Fly Monkey 0.13 130 993
2915 Zuma 0.06 130 2110
3115 Energy × Delay 0.44 130 293
1108 Split Windows 0.55 129 232
1288 Sly Number 0.4 129 321
2281 Link and Pop – the Block Game 0.24 129 535
2319 COMPRESS 0.27 129 471
2638 Kingdom 0.28 129 445
3558 Map Generator returns (MG-II) 0.49 129 261
1295 I hate SPAM, but some people love it 0.46 128 276
2808 Artificial Strife 0.37 128 344
1772 New Go Game 0.18 127 678
1817 Traffic Jam 0.47 127 268
2134 Traffic Lights 0.22 127 556
2343 Airline company 0.33 127 381
1399 Direct Visibility 0.45 126 278
2158 A Difficult Mathematics Problem 0.4 126 314
2204 Commuter train 0.31 126 405
2798 Hardwood Cutting 0.39 126 319
2919 Traveling Queen Problem 0.24 126 510
3166 Jumping Frog 0.3 126 418
3703 Intuition of Escape 0.19 126 648
1296 Noise Effect 0.55 125 225
1335 Digital Onion 0.29 125 428
1425 Enigmatic Travel 0.64 125 195
1525 Hi-Q 0.81 125 154
1725 BALL 0.56 125 220
3870 Inspection 0.22 125 557
1369 Append 0.29 124 416
2061 Pseudo-random Numbers 0.29 124 423
2071 Auctions R Us 0.3 124 411
2098 Ellipse 0.16 124 752
1653 Compacting Stickers 0.37 123 331
2731 ACM(ACronymMaker) 0.13 123 942
2813 Pasting Strings 0.35 123 349
3024 The Gossiping System 0.44 123 279
3821 Clickomania 0.22 123 545
1294 Not Too Convex Hull 0.3 122 396
1373 L-system 0.12 122 1000
2988 Function Approximation 0.27 121 446
3079 Enigmatologically Cruciverbalistic 0.19 121 631
1257 Cross-stitch. 0.36 120 333
1957 Beehives 0.32 120 364
2554 Fixed Partition Contest Management 0.4 120 293
2869 P-Networks 0.5 120 236
3206 Ikki’s Story III - Rescue frkstyc! 0.19 120 623
1124 Oh, Those Achin’ Feet 0.29 119 404
1435 Gates 0.48 119 243
1825 Young 0.35 119 331
2214 Regions 0.53 119 222
3315 Roofing It 0.34 119 341
3527 Generalized Connect Four 0.19 119 608
3773 String-Matching Automata 0.62 119 189
3808 Malfatti Circles 0.5 119 236
1202 Family 0.18 117 626
1561 Another Puzzling Problem 0.33 117 347
2058 Word Encoding 0.42 117 278
2129 Invariant Polynomials 0.39 117 294
2648 CDVII 0.31 117 374
2855 Go 0.47 117 248
3795 The Two Note Rag 0.7 117 165
2268 Euro Cup 2000 0.53 116 218
2364 Faucet Flow 0.28 116 402
2764 Unequalled Consumption 0.26 116 433
1869 Test 0.5 115 230
3198 Polygon Encoder 0.18 115 638
3289 Moonshine 0.19 115 591
1138 Ships 0.14 114 799
1638 A number game 0.22 114 504
1999 Quorf 0.27 114 413
3738 Card Game 0.18 114 620
3854 Another Brick in the Wall 0.54 114 211
1235 Galactic Breakup 0.45 113 248
1559 Equation Elation 0.49 113 230
1773 Outernet 0.36 113 313
2820 TN’s Kingdom II - Construction 0.14 113 793
2874 A Baron Landscape 0.37 113 303
2310 Cubic Tick-Tack-Toe 0.13 112 846
1645 BSP Trees 0.67 111 164
3500 Youth Hostel Dorm 0.27 111 406
1303 Byte Me! 0.47 110 233
3442 Baseball 0.36 110 299
1203 Timetable 0.31 109 347
1544 A Puzzling Problem 0.32 109 338
2865 ICPC Strikes Again 0.21 109 507
1278 BOAT 0.32 108 332
2322 PLANKS 0.34 108 315
3147 John’s Canonical Difference Bound Matrices 0.14 108 738
3829 Seat taking up is tough 0.37 108 291
3941 Expected Allowance 0.5 108 216
1358 Housing Complexes 0.41 107 255
1403 Hotline 0.4 107 261
1793 Storehouse 0.38 107 276
1846 System 0.35 107 300
2107 Gear Profiles 0.29 107 357
2147 Dice Puzzle 0.45 107 234
3223 Football Game 0.14 107 742
3236 Michelle’s Evaluation 0.07 107 1491
1689 3002 Rubbery 0.47 106 221
1748 Computer Dialogue 0.41 106 254
1280 Game 0.47 105 222
1714 The Cave 0.37 105 281
1863 Subnumber 0.11 105 878
2344 Nikifor 0.53 105 196
3577 Global Positioning System 0.08 105 1240
3818 Mosaic 0.36 104 282
1497 Molecules 0.72 103 143
2448 A New Operating System 0.1 103 1002
2543 Spreadsheet 0.26 103 385
3330 Dr. Podboq or: How We Became Asymmetric 0.32 103 320
3792 Area of Polycubes 0.41 103 247
1342 Tag Trees 0.36 102 281
1448 Cube 0.34 102 297
2073 Doggone Moles 0.35 102 287
3569 Equation 0.2 102 488
1571 Loansome Car Buyer 0.39 101 257
3379 Alphabet 0.29 101 343
1261 Huffman Trees 0.15 100 632
1867 Treequivalence 0.28 100 347
2212 Cavern 0.49 100 204
2238 Computer Basketball Game 0.47 100 211
3008 Hexerpents of Hexwamp 0.32 100 312
3547 Cube evolvent 0.27 100 361
3971 Scales 0.46 100 213
4028 GCD Guessing Game 0.4 100 246
1812 Zuma Game 0.21 99 451
1866 Help! 0.29 99 339
1913 Cocktails 0.19 99 506
1960 Time Planner 0.23 99 420
2700 Space Travel 0.16 99 594
3721 Darkterror’s Combos 0.16 99 596
1437 Chat Rooms 0.17 98 565
3313 The Mastermind Master’s Mind 0.42 98 229
3912 Up and Down 0.22 98 429
1199 Left labyrinths 0.18 97 529
2877 Chambers Ceramic Conundrum 0.44 97 217
4007 Flood-it! 0.37 97 256
1223 DEHUFF 0.37 96 259
1249 Oil Pipeline 0.33 96 288
1858 Interesting Maze Game 0.31 96 303
1967 Alibaba 0.13 96 711
2422 The Wolves and the Sheep 0.24 96 400
3655 Guard 0.41 96 231
1756 Domino Puzzle 0.49 95 192
2841 Navigation Game 0.23 95 402
3118 Critical Route 0.36 95 258
3915 Black Vienna 0.4 95 237
1194 HIDDEN CODES 0.27 94 341
1311 Doing Windows 0.31 94 301
1431 Calendar of Maya 0.48 94 193
1585 Helping Florida 0.23 94 406
1841 Meadow 0.18 94 510
2198 Boundaries on 0.34 94 271
2622 Convex hull 0.22 94 422
2716 Open and Close 0.2 94 468
2797 Guards 0.39 94 238
3149 Billing Tables 0.23 94 407
3248 Soldier 0.21 94 431
3574 Japanese Writing 0.59 94 158
3774 Elune’s Arrow 0.34 94 272
1372 FORCAL 0.39 93 234
1779 Boolean Logic 0.43 93 214
1897 Data Mining 0.27 93 344
2768 Pesky Heroes 0.29 93 314
3998 Land Division 0.36 93 254
2852 Model Rocket Height 0.54 92 169
3305 Surveillance 0.34 92 267
3389 Kennings 0.15 92 605
3878 Haunted Graveyard 0.22 92 409
1446 Moscow Time 0.26 91 350
2037 Roll Playing Games 0.2 91 438
2113 Agents 0.33 91 275
2807 Bingo! 0.47 91 193
3898 Software Industry Revolution 0.31 91 287
1109 Index Generation 0.38 90 232
1627 Experiment “X”: Explosions Expected 0.15 90 575
2297 Balanced Chemical Equations 0.39 90 229
3677 Chemical Weighing 0.15 90 568
3846 Mountain Road 0.36 90 244
1224 PICTURE PUZZLE 0.32 89 272
1834 线段处理 0.13 89 640
1982 Water Tank 0.46 89 193
3336 ACM Underground 0.33 89 266
3571 Game 0.32 89 278
1526 Call Forwarding 0.56 88 155
1527 Making the Grade 0.68 88 128
2298 Great Circle 0.3 88 291
2717 Hour Glass 0.25 88 346
2835 Sunzi’s Problem 0.13 88 647
3794 Extended Normal Order Sort 0.22 88 399
3860 Fruit Weights 0.26 88 332
3874 Working at the Restaurant 0.42 88 208
1963 Cave Exploration 0.25 87 341
3902 The Bad Number 0.37 87 235
4026 Eve 0.28 87 309
1115 Statistical Trouble 0.41 86 206
1412 Equals are Equals 0.19 86 438
2067 Young, Poor and Busy 0.52 86 165
2804 Jetpack Sniper 3000 Fragfest Extreme 0.51 86 166
1136 Pendulum 0.34 85 247
1876 The Letter Carrier’s Rounds 0.28 85 294
1933 A Brief Gerrymander 0.32 85 260
2842 N-dimension Matching 0.55 85 154
2968 Necklace 0.15 85 561
2990 Board Game 0.33 85 252
3097 Falling Ice 0.33 85 251
3819 Coverage 0.22 85 386
2747 Shy Polygons 0.27 84 310
3477 System of Linear Equations 0.14 84 573
3759 Simple Distributed computing system 0.35 84 234
1272 Synchronous Design 0.28 83 288
1705 Generational Replacement 0.32 83 254
2634 Nullary Computer 0.38 83 214
2687 Earth Observation with a Mobile Robot Team 0.29 83 284
3396 A Scheduling Problem 0.33 83 248
3555 Cocktail 0.2 83 397
3689 Equations 0.08 83 971
3827 Facer is learning to swim 0.26 83 311
1402 The Game of Master-Mind 0.47 82 174
1424 Diamonds 0.26 82 307
2306 Genealogical Research 0.3 82 268
2307 Treasure Map 0.4 82 205
2788 Black Box 0.53 82 152
3165 Traveling Trio 0.19 82 419
3238 A Coin Game 0.25 82 319
3520 Lowest Pyramid 0.26 82 315
1937 Balanced Food 0.26 81 303
2203 Patience 0.61 81 132
2416 Return of the Jedi 0.44 81 182
2468 Adventures in Moving - Part V 0.27 81 294
3578 Card Game 0.13 81 588
1212 Eeny Meeny 0.37 80 215
1421 Peter’s Calculator 0.24 80 333
3011 Secrets in Shadows 0.21 80 368
3479 RoBa Has a Second Art Gallery! 0.15 80 521
3889 Fractal Streets 0.37 80 213
3969 K-Graph Oddity 0.15 80 521
1209 Calendar 0.14 79 534
1233 Street Crossing 0.21 79 370
1397 The Bulk 0.54 79 145
1615 Merging Sequences Problem 0.17 79 464
3381 Confectionery 0.32 79 243
1865 Practice 0.66 78 117
1893 Monitoring Wheelchair Patients 0.18 78 418
2221 Frogger’s For Dinner 0.54 78 143
3586 The missionaries and cannibals 0.28 78 276
3730 Ebbinghaus method 0.21 78 370
4018 High security 0.26 78 300
2300 Up the Ante 0.33 77 231
3964 Factorial Simplification 0.36 77 211
1592 Postscript 0.28 76 271
2902 Intercepting Missiles 0.44 76 169
3382 Deciphering 0.19 76 381
3599 Pumping Lemma 0.34 76 223
4006 Genghis Khan the Conqueror 0.38 76 199
1764 Dice Contest 0.05 75 1426
1824 TwoFour 0.39 75 192
3151 Driving Directions 0.29 75 252
3924 Tornado 0.27 75 270
1554 Tournament Brackets 0.38 74 190
2995 Go Endgame 0.3 74 242
3397 Click the Lines 0.41 74 179
3766 Hexagon Coin Toss 0.26 74 277
1441 Table 0.24 73 297
2177 Ghost Busters 0.37 73 195
3515 Moving Sticks 0.33 73 215
3679 The Delivery of Control 0.33 73 215
3704 Mover 0.15 73 465
3868 Garbling Game 0.25 73 290
1643 Checker’s Check 0.44 72 162
2087 Petanque 0.4 72 176
2314 POJ language 0.19 72 378
2927 Constructing Roads 0.13 72 527
3059 Rummikub 0.4 72 179
3152 Exchange 0.22 72 317
3906 Lucky cities 0.18 72 389
4025 Dictionary Size 0.16 72 441
2324 Intellectual Property 0.5 71 142
3596 Illuminated Planet 0.25 71 282
2091 Zing Zhu’s Oyster Farm 0.26 70 263
3108 Horn Clauses 0.18 70 377
3899 The Lucky Numbers 0.28 70 244
1798 Dory’s Phonebook 0.26 69 265
3775 Chase 0.29 69 235
2219 Manifest Destiny 0.27 68 243
2534 Falling cards 0.23 68 287
3570 Fund Management 0.26 68 256
3791 Text Messaging Improvement? 0.32 68 208
1582 Which Way Do I Go? 0.15 67 421
1600 Centipede Collisions 0.26 67 257
2237 Can 1 Marine win 2 Zerglings? 0.15 67 421
2682 Tomato Automata 0.28 67 234
3568 Diver 0.51 67 130
3755 The Training of Chain Lightning 0.2 67 335
3809 Twenty Questions 0.38 67 172
1347 Triangle 0.29 66 226
1443 DEL command 0.32 66 206
1626 Chapayev 0.27 66 242
2315 Football Game 0.28 66 228
2542 Fool Game 0.29 66 221
2801 Knockdown 0.22 66 287
3127 Lineland’s Airport 0.37 66 175
3820 XML 0.22 66 296
1766 Football 0.57 65 114
2655 Structural Equivalence 0.42 65 154
2779 Atom Bombs!? God! 0.17 65 381
3064 Payment System 0.47 65 137
1253 Markov Trains 0.22 64 287
1614 Space AI Bombs 0.23 64 272
1829 火力防御网 0.33 64 193
3552 Snatch! 0.3 64 208
1439 Rhombs 0.57 63 110
2235 Triangularize the Convex Hull 0.21 63 295
2428 Surface Reconstruction 0.41 63 152
2621 Parallelepiped 0.28 63 225
3240 Solution to the n2 − 1 Puzzle 0.17 63 362
3610 Maclaurin Series of Reciprocals 0.32 63 194
3811 Infected Land 0.29 63 214
3836 P2P File Sharing System 0.38 63 162
1490 Cabinets 0.25 62 248
3081 Core Wars 0.39 62 156
3584 Small Polynomial Factorization 0.24 62 257
3867 Funny Language 0.34 62 180
3929 Timer 0.31 62 198
1801 Formula Racing 0.29 61 205
2076 All Roads Lead to Albuquerque, er, Rome 0.19 61 311
2150 Crossing Prisms 0.36 61 165
2216 Roulette 0.28 61 215
2730 F1 Circuit Design 0.14 61 431
3919 Cell Towers 0.58 61 105
1541 Dart-a-Mania 0.44 60 136
1911 A Well-Formed Problem 0.15 60 391
3136 The Best Name for Your Baby 0.28 60 211
4005 Moles 0.13 60 446
2120 Herbalists 0.52 59 113
2277 Region Filling 0.16 59 352
2971 “Switchback” 0.23 59 249
1427 Get Them All 0.46 58 126
1449 Enigma 0.35 58 163
1542 DNA Translation 0.2 58 277
3142 Escape Plan 0.09 58 607
3556 Increasing subsequences 0.32 58 176
3706 System Test 0.3 58 192
3733 Shadow Area 0.15 58 378
3975 Shortcut 0.34 58 170
1413 GIGA Universe Cup 0.32 57 175
2025 Cubic Rube 0.28 57 203
2207 Intuitionistic Logic 0.11 57 489
2224 Missing Piece 2001 0.37 57 151
1447 Ambiguous Dates 0.4 56 137
2399 A Mayor Problem 0.33 56 169
2903 Joy of Mobile Routing 0.27 56 203
2905 Parallel Computer Simulator 0.25 56 219
3772 Baseball of Planet Pandora 0.45 56 124
3848 Room Assignments 0.35 56 158
3858 Hurry Plotter 0.53 56 105
3946 Search of Concatenated Strings 0.28 56 197
1875 Robot 0.31 55 177
2223 Get Out ‘Da Way! 0.31 55 173
2278 Histology Assistant 0.35 55 157
3446 Catch the Bus! 0.38 55 144
3634 Circle of Debt 0.34 55 158
3804 Swimming Jam 0.49 55 112
3816 Pool Table 0.14 55 371
1246 Hilbert Curve Intersections 0.34 54 158
3329 Twirl Around 0.18 54 296
3603 Zen Puzzle Garden 0.24 54 217
3777 Snail Alice 0.35 54 154
3972 BF 0.22 54 242
1668 Taxation With Representation Overdone 0.26 53 200
2016 Ink Blots 0.26 53 200
2360 Trains 0.27 53 190
2814 Mobiles 0.23 53 227
2936 Construct the Wall Maze 0.08 53 611
3812 Block Game 0.1 53 482
4043 Remoteland 0.24 53 219
1641 Rational Approximation 0.42 52 122
1921 Paper Cut 0.2 52 252
2650 Spaghetti 0.35 52 148
1232 Microfiches 0.37 51 135
1333 Christmas Gifts 0.42 51 120
1533 Mystery 0.16 51 305
2770 Tantrix 0.64 51 79
2911 Simplified λ-evaluations 0.48 51 106
3353 Nuevo-Romano 0.09 51 529
3896 Multiprocessor Scheduling 0.44 51 115
2450 A New Kind of Chess 0.19 50 262
2755 Dominoes 0.26 50 186
3242 3-dimensional Musical Water-fence 0.3 50 163
3888 Dimensional Warp Drive 0.4 50 122
4050 Necklace 0.25 50 197
2294 Unfoldung 0.17 49 288
2811 Packing Dominoes 0.3 49 161
3549 GSM phone 0.14 49 328
3823 Decompressing in a GIF 0.31 49 155
3973 Highlights 0.49 49 100
1498 Matching Meetings 0.28 48 166
1919 Ship Journey 0.16 48 293
1956 Pumps and Pipes 0.28 48 168
2544 PreQueL 0.24 48 197
2972 Laser-Ball 0.36 48 132
3052 Geodes 0.38 48 125
4019 Immediate Delivery 0.33 48 145
4039 Guess the Numbers 0.45 48 105
3478 Undergraduate Instruction Evaluation 0.44 47 106
3559 Trigonometric optimization 0.09 47 491
4042 Regular Convex Polygon 0.38 47 122
1357 Afshung Pizza Delivery 0.37 46 122
1593 Radar Scopes 0.25 46 183
1594 Message Routing 0.59 46 77
1670 Obstructed Rook Circuits 0.25 46 181
1839 Cattle 0.18 46 255
2077 Balanced Budget Initiative 0.23 46 199
2093 Cutting Edge 0.26 46 173
2821 TN’s Kingdom III - Assassination 0.14 46 307
2879 Vice City 0.19 46 236
2930 Dialing Dice 0.11 46 416
3387 Ideal Frame 0.31 46 147
3611 Minimum Weighted Perfect Fractional b-Matching 0.42 46 109
3769 Baseball on the Mercury 0.34 46 132
3942 Stopped Watches 0.65 46 70
3944 Spherical Mirrors 0.75 46 61
1464 Company 0.13 45 338
2753 Similarity of necklaces 0.14 45 301
2878 IOI Photos 0.22 45 202
3758 The story of three kingdoms XI 0.13 45 325
3960 Binary Operation 0.29 45 155
1902 Illumination 0.16 44 261
3825 Here’s a Product Which Will Make You Tensor 0.18 44 240
4051 Aeroplane Chess 0.35 44 124
1483 Going in Circles on Alpha Centauri 0.5 43 86
1499 Supercomputer Selection, The Sequel 0.49 43 87
3701 Rubik’s Cube: 0-1 Version 0.18 43 229
3866 Exclusive Access 2 0.43 43 100
3879 Slalom 0.22 43 190
3966 Hands of Poker 0.3 43 142
1510 Hares and Foxes 0.29 42 142
1512 Keeps Going and Going and … 0.51 42 82
1807 Mayan Dates 0.44 42 94
3830 Ancient vending machine 0.29 42 143
1560 18 Wheeler Caravans (aka Semigroups) 0.56 41 72
1889 Package Pricing 0.08 41 456
2293 Hey, Pay Day! 0.35 41 114
2806 Janken Tactics 0.23 41 177
2885 Prince of Persia 0.26 41 155
3235 Super Knight 0.27 41 149
3490 Jumping Frogs 0.22 41 184
3824 Flipper 0.51 41 80
3843 Common Subexpression Elimination 0.09 41 440
3856 deltree 0.5 41 81
3887 The Pharaoh’s Curse 0.17 41 232
3945 Traveling Cube 0.63 41 65
4041 Peer Review 0.45 41 91
1842 Parking 0.32 40 125
1884 Train Time 0.1 40 398
2099 Fool’s Day 0.08 40 491
2824 Bohemian Rhapsody 0.11 40 352
2829 How Many Free Dimensions? 0.33 40 119
1268 Forests 0.25 39 155
1802 Ancient Plates 0.15 39 255
3116 MegaCheckers 0.29 39 134
3890 No Smoking, Please 0.21 39 184
3931 Classmates 0.54 39 71
1567 WIMP 0.42 38 90
1746 Loan 0.19 38 196
2423 The Parallel Challenge Ballgame 0.21 38 175
2916 The Wolves and the Sheep Plus 0.2 38 189
3031 Jezzball 0.47 38 80
3531 Alternating Sum of Digits 0.2 38 190
1908 Grid Speed 0.12 37 294
2024 Know When to Hold ‘em 0.37 37 98
2617 Taxes 0.11 37 331
2776 Cheat at Math 0.2 37 181
2787 UFO Cubes in Roswell 0.17 37 217
2910 Downpayment 0.29 37 127
3019 Image Rotation 0.35 37 104
3560 Supersquare 0.2 37 185
3857 Solar Eclipse 0.27 37 136
3859 ACM Coalition 0.55 37 67
1445 Random number 0.33 36 109
1954 Warez Test 0.13 36 263
2072 GHOST 0.2 36 175
1393 Fold-up Patterns 0.57 35 61
1762 Bundling 0.44 35 78
2095 Beth Tableaux 0.23 35 149
2130 Jogging 0.09 35 383
2929 The Traveling Salesman 0.19 35 181
3054 High Spies 0.33 35 103
1428 Hermes’ Colony 0.15 34 214
1500 Polygonal Puzzle 0.22 34 154
1516 Parallel Deadlock 0.54 34 62
1605 Horse Shoe Scoring 0.34 34 100
3529 Matrix Analysis 0.28 34 119
3834 Graph Game 0.16 34 206
3930 Elevator 0.24 34 141
1467 Symbolic Derivation 0.49 33 67
1479 MBone 0.33 33 99
2012 Triangle Cuts 0.2 33 160
3876 Darts 0.55 33 60
3901 The Computer Game 0.47 33 70
4008 Running relay 0.16 33 195
4040 Non-negative Partial Sums 0.13 33 247
1596 Gears on a Board 0.34 32 93
2851 No Fold’em Hold’em 0.34 32 92
3872 K-equivalence 0.24 32 129
3883 Penguin Bashing 0.29 32 109
1711 Puncher 0.31 31 100
2123 Artinals 0.12 31 245
1225 STRICTLY INSCRIBED SIMILAR TRIANGLES 0.31 30 95
1553 Fax Regions 0.3 30 97
1587 High and Dry 0.24 30 122
2839 Convex Hull and Triangle 0.13 30 218
2962 Who owns the Amiga? 0.35 30 84
3113 The Halting Problem 0.19 30 156
3575 Kingdom Partitioning 0.15 30 195
4037 Distributing Ballot Boxes 0.14 30 205
1210 City Directions 0.17 29 166
1534 Terrorist Attack 0.21 29 134
3851 Wormholes 0.15 29 188
3871 Java Certification 0.18 29 158
1883 Theseus and the Minotaur 0.19 28 142
2863 Mission Impossible 0.2 28 138
3153 Fool’s Game 0.2 28 135
3591 Ants and Aphides 0.1 28 268
3793 Joe’s Triangular Gardens 0.68 28 41
3861 Royal Gems 0.14 28 187
1360 Blue x Red = Bang 0.13 27 200
3144 Guarding Zion 0.12 27 223
3545 K’ak’-u-pakal and Mayan Script 0.19 27 141
3798 Cave Crisis 0.24 27 109
3943 Digits on the Floor 0.51 27 52
3976 Kings 0.38 27 71
3826 Trip the Lights Fantastic 0.19 26 132
3875 Lights 0.24 26 108
1452 Signal Box 0.36 25 68
3473 Stochastic Finite State Automaton 0.26 25 94
3551 Putin-chess 0.2 25 123
1540 The Finite State Text-Processing 0.21 24 111
1891 Typesetting 0.1 24 228
1910 Adam’s Genes 0.11 24 209
2517 Cover 0.15 24 159
3474 Ellipsoid 0.32 24 74
3491 Rotated Sky Charts 0.05 24 419
3564 Magic pyramid 0.17 24 134
3770 Baseball on the Mars 0.14 24 162
1361 JaWs 0.29 23 77
1814 Polynomial 0.07 23 288
3354 Connect the Dots 0.12 23 181
3651 Slink 0.33 23 69
3933 New Liquid 0.63 23 36
1820 Expression 0.0 22 2309
1871 Bullet Hole 0.06 22 335
2401 Street Polygon 0.1 22 209
3247 Robots 0.15 22 146
3828 Zombies VS Plants 0.18 22 119
3880 Routing 0.61 22 36
3143 False Perceptions 0.1 21 197
3799 Optimal Strategy for the ICPC 0.15 21 140
3807 Chemist’s Math 0.32 21 65
3822 Cover Up 0.29 21 72
3961 Cactus Revolution 0.11 21 187
4021 Kids Like Cakes 0.06 21 307
1630 Max Separation 0.4 20 49
2097 Drawing Windows 0.32 20 62
3089 Sign Message Formatting 0.26 20 76
3433 Road Accident 0.27 20 74
3540 Formula 0.27 20 74
3796 Spatial Concepts Test 0.66 20 30
3833 Hamlet’s gambling 0.2 20 99
3937 Parlay Wagering 0.17 20 116
1881 Sail Race 0.29 19 64
2950 Nuclear Plants 0.04 19 446
2999 Matrix 0.15 19 122
3464 Approximations 0.05 19 334
3932 Matches 0.1 19 183
4010 Shadow 0.42 19 45
3403 “Bloody Mary” 0.02 18 672
4009 Porcelain Exhibitions 0.24 18 75
1994 Logic 0.5 17 34
3707 High-Dimensional Vector Correspondence 0.05 17 297
3884 Gearbox 0.51 17 33
3948 Common Polynomial 0.68 17 25
1346 Board of Directors Meeting 0.24 16 66
2884 ACM-Telecom 0.11 16 139
3234 The Kylin Den 0.17 16 94
3676 Tomorrow Genius 2008 0.25 16 62
3722 We’re Going In 0.03 16 403
3877 Genetics 0.59 16 27
1843 Shire 0.13 15 110
1864 Funny Card Game 0.24 15 61
3935 Striking Ball 0.15 15 98
4038 Game, Set and Match 0.5 15 30
4034 Alphabet Soup 0.31 14 45
3745 Keep Contact 0.06 13 205
3918 A to Z Numerals 0.44 13 29
3949 Zigzag 0.32 13 40
2981 Deal of Fortune 0.06 12 178
3362 20-Four 0.13 12 89
3383 Equation 0.19 12 63
3466 Distance to the Prey 0.1 12 111
3563 Parabolic teleports 0.06 12 186
4004 My World Cup 0.4 12 30
2963 Lazy Evaluation 0.16 11 67
3496 Word Hyphenation 0.11 11 93
3885 Escape from the Minefield 0.28 11 39
3947 Top Spinning 0.52 11 21
1536 Trains 0.08 10 115
3457 Mineshaft 0.15 10 65
4031 Journey 0.06 10 146
3582 Last Hit 0.02 8 338
3806 Origami Through-Hole 0.36 8 22
3939 Extended Manhattan Distance 0.14 8 55
4013 Cube Coloring 0.04 8 176
3780 Tour Route 0.02 6 232
1345 Address Recovery 0.25 5 20
3810 Hobby on Rails 0.55 5 9
4024 Caption 0.07 5 63
4053 World of Goo 0.05 5 87
3161 Numerical Integration 0.01 4 363
3203 Incremental Python Parsing 0.05 4 74
1892 VTAS - Vessel Traffic Advisory Service 0.02 3 135
4035 Coin Collecting 0.05 3 55
1531 Trooper of Bam 0.01 2 170
3202 A Very Simple Compiler 0.04 2 45
4017 Galaxy Interconnection 0.03 2 59
4033 Lanes 0.04 2 49
4015 Electrification 0.04 1 25
4054 KINA Is Not Abbreviation 0.01 1 59
4027 Flights 0.0 0 39
4029 Huzita Axiom 6 0.0 0 20
4032 Kingdom Roadmap 0.0 0 183
4036 Cybercrime Donut Investigation 0.0 0 112

抓取程序：

import time  
import urllib2  
from bs4 import BeautifulSoup  
import sys, codecs  
reload(sys)  
sys.setdefaultencoding('utf-8')  

# print sys.getdefaultencoding()  

sys.stdout = codecs.getwriter('utf8')(sys.stdout)  
sys.stderr = codecs.getwriter('utf8')(sys.stderr)  


class Problem:  
    """A problem on POJ with ID, Title, Ratio(AC, submit)"""  
    def __init__(self, ID, Title, Ratio, AC, submit):  
        self.ID = ID  
        self.Title = Title  
        self.Ratio = float(Ratio)  
        self.AC = int(AC)  
        self.submit = int(submit)  

def getProblemList():  
    url = "http://poj.org/problemlist?volume={pagenum}"  
    problems = []  
    for pagenum in range(1, 32):  
        # print 'pagenum:', pagenum  
        soup = BeautifulSoup(urllib2.urlopen(url.format(pagenum = pagenum)).read())  
        rows = soup.find("table", { "class" : "a" }).find_all("tr", {"align" : "center"})  
        # print rows  

        for row in rows:  
            cells = [x.get_text() for x in row.find_all("td")]  
            # print cells  
            ID, Title, Ratio, AC, submit = cells[0], cells[1], float(cells[2].split("%")[0]) / 100, int(cells[2].split('(')[1].split('/')[0]), int(cells[2].split('(')[1].split('/')[1][:-1])  
            # print ID, Title, Ratio, AC, submit  
            problems.append(Problem(ID, Title, Ratio, AC, submit))  
            # rn = cells[0].get_text()  
            # print rn  
    "white-space:pre">    time.sleep(3)  
    for problem in sorted(problems, key = lambda x : x.AC, reverse = True):  
        print problem.ID, problem.Title, problem.Ratio, problem.AC, problem.submit  

def hardmode():  
    problems = []  
    with open('log.txt') as f:  
        for line in f:  
            fileds = line.split()  
            # print len(fileds), fileds  
            ID, Title, Ratio, AC, submit = fileds[0], ' '.join(fileds[1:-3]), fileds[-3], fileds[-2], fileds[-1]  
            problems.append(Problem(ID, Title, Ratio, AC, submit))  
    for problem in sorted(problems, key = lambda x : x.AC):  
        print problem.ID, problem.Title, problem.Ratio, problem.AC, problem.submit  

if __name__ == "__main__":  
    hardmode()  

hard模式：
4027 Flights 0.0 0 39
4029 Huzita Axiom 6 0.0 0 20
4032 Kingdom Roadmap 0.0 0 183
4036 Cybercrime Donut Investigation 0.0 0 112
4015 Electrification 0.04 1 25
4054 KINA Is Not Abbreviation 0.01 1 59
1531 Trooper of Bam 0.01 2 170
3202 A Very Simple Compiler 0.04 2 45
4017 Galaxy Interconnection 0.03 2 59
4033 Lanes 0.04 2 49
1892 VTAS - Vessel Traffic Advisory Service 0.02 3 135
4035 Coin Collecting 0.05 3 55
3161 Numerical Integration 0.01 4 363
3203 Incremental Python Parsing 0.05 4 74
1345 Address Recovery 0.25 5 20
3810 Hobby on Rails 0.55 5 9
4024 Caption 0.07 5 63
4053 World of Goo 0.05 5 87
3780 Tour Route 0.02 6 232
3582 Last Hit 0.02 8 338
3806 Origami Through-Hole 0.36 8 22
3939 Extended Manhattan Distance 0.14 8 55
4013 Cube Coloring 0.04 8 176

转载自:http://blog.csdn.net/thestoryofsnow/article/details/40942009