POJ前面的题目算法思路【转】

1000 A+B Problem 送分题 49％ 2005-5-7
1001 Exponentiation 高精度 85％ 2005-5-7
1002 487-3279 n/a 90％ 2005-5-7
1003 Hangover 送分题 62％ 2005-5-7
1004 Financial Management 送分题 61％ 2005-5-7
1005 I Think I Need a Houseboat 几何 68％ 2005-5-7
1006 Biorhythms 送分题 80％ 2005-5-7
1007 DNA Sorting 送分题 66％ 2005-5-7
1008 Maya Calendar 日期处理惩罚 74％ 2005-5-7
1009 Edge Detection 84％ 2005-5-2
1010 STAMPS 搜刮＋DP 83％ 2005-5-2
1011 Sticks 搜刮 85％ 2005-5-7
1012 Joseph 模仿/数学办法 62％ 2005-5-7
1013 Counterfeit Dollar n/a 72％ 2005-5-7
1014 Dividing 数论/DP？/组合数学->母函数？ 82％ 2005-5-7
1015 Jury Compromise DP 81％ 2005-5-5
1016 Numbers That Count 送分题 69％ 2005-5-6
1017 Packets 贪婪 72％ 2005-5-7
1018 Communication System 贪婪 74％ 2005-5-3
1019 Number Sequence 送分题 80％ 2005-5-6
1020 Anniversary Cake 搜刮 87％ 2005-5-6
1021 2D-Nim 69％ 2005-5-3
1022 Packing Unit 4D Cubes 63％ 2005-4-26
1023 The Fun Number System 数论 77％ 2005-5-1
1024 Tester Program 73％ 2005-3-17
1025 Department 模仿 66％ 2005-4-22
1026 Cipher 组合数学 84％ 2005-5-6
1027 The Same Game 模仿 67％ 2005-5-6
1028 Web Navigation 送分题 75％ 2005-5-7
1029 False coin 66％ 2005-5-7
1030 Rating 83％ 2005-5-7
1031 Fence 策画几何 74％ 2005-5-7
1032 Parliament 66％ 2005-5-4
1033 Defragment 70％ 2005-5-1
1034 The dog task 策画几何 72％ 2005-5-6
1035 Spell checker 76％ 2005-5-7
1036 Gangsters 73％ 2005-5-1
1037 A decorative fence DP/组合数学 81％ 2005-4-30
1038 Bugs Integrated， Inc. 90％ 2005-5-4
1039 Pipe 几何 68％ 2005-5-2
1040 Transportation 69％ 2005-5-4
1041 John”“s trip 83％ 2005-5-2
1042 Gone Fishing贪婪/DP 81％ 2005-5-3
1043 What”“s In A Name？ 75％ 2005-5-2
1044 Date bugs 70％ 2005-5-2
1045 Bode Plot 送分题（用物理常识） 24％ 2005-5-2
1046 Color Me Less 送分题 64％ 2005-5-7
1047 Round and Round We Go 高精度 63％ 2005-5-6
1048 Follow My Logic 模仿 76％ 2005-5-6
1049 Microprocessor Simulation 模仿 73％ 2005-5-6
1050 To the Max DP 60％ 2005-5-7
1051 P，MTHBGWB 55％ 2005-5-7
1052 Plato”“s Blocks n/a 类似ceoi99 matty block 67％ 2005-5-1
1053 Set Me 送分题 52％ 2005-5-7
1054 The Troublesome Frog 搜刮 81％ 2005-5-2
1055 BULK MAILING 75％ 2005-5-5
1056 IMMEDIATE DECODABILITY 62％ 2005-5-6
1057 FILE MAPPING 63％ 2005-4-30
1058 The Gourmet Club 85％ 2005-5-4
1059 Chutes and Ladders 40％ 2005-5-5
1060 Modular multiplication of polynomials 高精度 59％ 2005-5-4
1061 青蛙的约会 数论 92％ 2005-5-7
1062 昂贵的聘礼 DP 84％ 2005-5-1
1063 Flip and Shift 53％ 2005-4-30
1064 Cable master DP/二分查找 77％ 2005-5-2
1065 Wooden Sticks DP 59％ 2005-5-3
1066 Treasure Hunt 61％ 2005-4-21
1067 取石子游戏 博弈论 86％ 2005-5-7
1068 Parencodings 送分题 40％ 2005-5-7
1069 The Bermuda Triangle 搜刮 67％ 2004-12-10
1070 Deformed Wheel 几何 79％ 2004-12-10
1071 Illusive Chase 送分题 50％ 2005-5-1
1072 Puzzle Out 搜刮 90％ 2005-4-25
1073 The Willy Memorial Program 模仿 77％ 2005-3-31
1074 Parallel Expectations DP 63％ 2005-4-9
1075 University Entrance Examination 模仿 63％ 2005-5-1
1076 Bowl 90％ 2005-5-1
1077 Eight 82％ 2005-5-6
1078 Gizilch 60％ 2005-4-14
1079 Ratio 69％ 2005-5-4
1080 Human Gene Functions DP->LCS变形 39％ 2005-5-4
1081 You Who？ 83％ 2004-12-4
1082 Calendar Game 博弈论 57％ 2005-5-5
1083 Moving Tables 58％ 2005-5-3
1084 Square Destroyer 搜刮？ 62％ 2005-5-6
1085 Triangle War 博弈论 71％ 2005-3-23
1086 Unscrambling Images 模仿？ 52％ 2005-2-24
1087 A Plug for UNIX 图论->最大流 81％ 2005-5-6
1088 滑雪 DFS/DP 81％ 2005-5-7
1089 Intervals 80％ 2005-5-1
1090 Chain ->格雷码和二进制码的转换 83％ 2005-5-6
1091 跳蚤 数论 83％ 2005-5-4
1092 Farmland 几何 63％ 2005-4-23
1093 Formatting Text DP 87％ 2005-5-1
1094 Sorting It All Out 图论->拓扑排序 76％ 2005-5-7
1095 Trees Made to order 组合数学 47％ 2005-5-1
1096 Space Station Shielding 送分题 45％ 2005-5-1
1097 Roads Scholar 图论 63％ 2005-5-1
1098 Robots 模仿 58％ 2005-2-24
1099 Square Ice 送分题 65％ 2005-5-5
1100 Dreisam Equations 搜刮 90％ 2005-5-6
1101 The Game 搜刮->BFS 74％ 2005-5-6
1102 LC-Display 送分题 62％ 2005-5-7
1103 Maze 模仿 64％ 2005-5-6
1104 Robbery 递推 61％ 2005-5-6
1105 S-Trees n/a 38％ 2005-5-7
1106 Transmitters 几何 39％ 2005-5-4
1107 W”“s Cipher 送分题 49％ 2005-5-7
1108 Split Windows n/a 25％ 2004-12-14
1109 Index Generation n/a 50％ 2005-1-18
1110 Double Vision 搜刮 44％ 2005-5-1
1111 Image Perimeters 搜刮 39％ 2005-5-7
1112 Team Them Up! DP 65％ 2005-5-2
1113 Wall 策画几何->convex hull 76％ 2005-5-5
1114 Chemical Reactions 52％ 2005-5-3
1115 Statistical Trouble 79％ 2005-4-16
1116 Library 68％ 2005-4-5
1117 Pairs of Integers n/a 75％ 2005-5-6
1118 Lining Up 79％ 2005-5-7
1119 Start Up the Startup 送分题 82％ 2005-4-28
1120 A New Growth Industry 模仿 54％ 2005-5-2
1121 Algernon”“s Noxious Emissions 33％ 2005-4-23
1122 FDNY to the Rescue! 图论->Dijkstra 81％ 2005-4-23
1123 For the Porsche 65％ 2005-4-7
1124 Oh， Those Achin”” Feet 75％ 2005-4-26
1125 Stockbroker Grapevine 图论->Dijkstra 35％ 2005-4-29
1126 Simply Syntax 73％ 2005-5-6
1127 Jack Straws 61％ 2005-4-29
1128 Frame Stacking 搜刮 55％ 2005-5-1
1129 Channel Allocation 搜刮（图的最大自力集） 37％ 2005-5-7
1130 Alien Security 55％ 2005-5-6
1131 Octal Fractions 高精度 46％ 2005-5-7
1132 Border 42％ 2005-4-29
1133 Stars 74％ 2005-5-1
1134 Hexagon 46％ 2005-2-24
1135 Domino Effect 图论->Dijkstra 56％ 2005-4-27
1136 Pendulum 68％ 2005-4-10
1137 The New Villa 搜刮->BFS 74％ 2005-4-29
1138 Ships 70％ 2005-3-26
1139 Cat and Mouse 74％ 2005-4-16
1140 Expanding Fractions 71％ 2005-5-7
1141 Brackets Sequence DP 76％ 2005-5-7
1142 Smith Numbers 搜刮 64％ 2005-5-7
1143 Number Game 博弈论 80％ 2005-4-17
1144 Network 66％ 2005-5-6
1145 Tree Summing 77％ 2005-5-4
1146 ID Codes 44％ 2005-5-5
1147 Binary codes 机关 71％ 2005-5-7
1148 Utopia Divided 机关 69％ 2005-5-5
1149 PIGS 图论->收集流 74％ 2005-5-7
1150 The Last Non-zero Digit 88％ 2005-5-3
1151 Atlantis 策画几何->一律安顿矩形的并的面积->离散化 66％ 2005-5-6
1152 An Easy Problem! 数论 87％ 2005-5-6
1153 SAFE 90％ 2005-4-11
1154 LETTERS 58％ 2005-4-28
1155 TELE 80％ 2005-5-5
1156 A STRIP OF LAND 93％ 2005-5-6
1157 LITTLE SHOP OF FLOWERS DP 58％ 2005-5-7
1158 TRAFFIC LIGHTS 图论->Dijkstra变形 81％ 2005-5-5
1159 Palindrome DP->LCS 82％ 2005-5-7
1160 Post Office DP 75％ 2005-5-4
1161 Walls 图论 63％ 2005-4-27
1162 Building with Blocks 搜刮 85％ 2005-4-27
1163 The Triangle DP 45％ 2005-5-7
1164 The Castle 50％ 2005-5-3
1165 The Primes 65％ 2005-5-6
1166 The Clocks 71％ 2005-5-6
1167 The Buses 73％ 2005-4-4
1168 The Circle 80％ 2005-3-12
1169 Packing Rectangles 25％ 2005-5-3
1170 Shopping Offers DP 60％ 2005-5-3
1171 Letter Game 85％ 2005-5-7
1172 Street Race 82％ 2005-4-29
1173 Bar Codes 81％ 2005-4-9
1174 Contact 76％ 2005-5-7
1175 Starry Night 52％ 2005-5-4
1176 Party Lamps 77％ 2005-5-3
1177 Picture 策画几何->一律安顿矩形的并的周长->线段树 53％ 2005-5-2
1178 Camelot 64％ 2005-5-2
1179 Polygon DP 60％ 2005-5-3
1180 Batch Scheduling DP 66％ 2005-4-19
1181 Bus Terminals 67％ 2005-4-19
1182 食品链 数据布局->并查集 84％ 2005-5-6
1183 反正切函数的应用 搜刮 73％ 2005-5-5
1184 聪慧的打字员 搜刮 76％ 2005-5-4
1185 炮兵阵地 DP->数据紧缩 82％ 2005-5-4
1186 方程的解数 87％ 2005-5-6
1187 陨石的诡秘 DP（BalkanOI99 Par的拓展） 81％ 2005-5-4
1188 Gleaming the Cubes 57％ 2005-3-27
1189 钉子和小球 递推？ 72％ 2005-5-5
1190 诞辰蛋糕 搜刮/DP 74％ 2005-5-4
1191 棋盘分别 DP 65％ 2005-5-7
1192 最优连通子集 图论->无负权回路的有向图的最长路->BellmanFord 63％2005-5-6
1193 内存分派 模仿 82％ 2005-4-27
1194 HIDDEN CODES 搜刮+DP 84％ 2005-5-4
1195 Mobile phones 79％ 2005-5-7
1196 Twofive 47％ 2005-4-19
1197 Depot 数据布局->Young Tableau 67％ 2005-4-15
1198 Solitaire 77％ 2005-5-7
1199 Left labyrinths 93％ 2005-4-30
1200 Crazy Search 91％ 2005-5-7
1201 Intervals 贪婪/图论->最长路->差分束缚体系 77％ 2005-4-15
1202 Family 高精度 87％ 2005-3-30
1203 Timetable 74％ 2005-2-24
1204 Word Puzzles 95％ 2005-4-3
1205 Water Treatment Plants 53％ 2005-4-19
1206 Servers 48％ 2005-2-24
1207 The 3n + 1 problem n/a 77％ 2005-5-7
1208 The Blocks Problem 79％ 2005-5-5
1209 Calendar 日期处理惩罚 78％ 2005-2-24
1210 City Directions 78％ 2005-4-29
1211 Traffic Lights 62％ 2005-4-30
1212 Eeny Meeny 46％ 2005-3-12
1213 Roman Numerals 30％ 2005-5-5
1214 “Accordian” Patience 45％ 2005-4-16
1215 Gondwanaland Telecom 70％ 2005-5-7
1216 Simulation Wizardry 16％ 2005-4-7
1217 FOUR QUARTERS 递推 65％ 2005-5-2
1218 THE DRUNK JAILER 送分题 29％ 2005-5-6
1219 L-I-N-G-O: LINGO 85％ 2005-5-2
1220 NUMBER BASE CONVERSION 65％ 2005-5-7
1221 UNIMODAL PALINDROMIC DECOMPOSITIONS 69％ 2005-5-5
1222 EXTENDED LIGHTS OUT 23％ 2005-5-2
1223 DEHUFF 72％ 2005-3-12
1224 PICTURE PUZZLE 76％ 2005-3-12
1225 STRICTLY INSCRIBED SIMILAR TRIANGLES 67％ 2005-3-12
1226 Substrings 55％ 2005-5-7
1227 RoboContest 76％ 2005-4-30
1228 Grandpa”“s Estate 82％ 2005-3-9
1229 Wild Domains 85％ 2005-2-15
1230 Pass-Muraille 81％ 2005-5-6
1231 The Alphabet Game 64％ 2005-4-16
1232 Microfiches 74％ 2005-5-3
1233 Street Crossing 搜刮->BFS 75％ 2005-4-15
1234 Ball Toss 47％ 2005-5-6
1235 Galactic Breakup 78％ 2005-5-4
1236 Network of Schools 52％ 2005-4-27
1237 The Postal Worker Rings Once 35％ 2005-4-28
1238 Arbitrage 85％ 2005-4-22
1239 Increasing Sequences 77％ 2005-5-7
1240 Pre-Post-erous! 40％ 2005-5-7
1241 Knockout Tournament 42％ 2005-5-7
1242 Plugged In 43％ 2005-3-31
1243 One Person 31％ 2005-5-6
1244 Slots of Fun 49％ 2005-5-7
1245 Programmer， Rank Thyself 送分题 45％ 2005-4-26
1246 Hilbert Curve Intersections 72％ 2005-3-31
1247 Magnificent Meatballs 送分题 28％ 2005-5-7
1248 Safecracker 搜刮 34％ 2005-4-15
1249 Oil Pipeline 72％ 2005-3-31
1250 Tanning Salon 送分题 39％ 2005-5-7
1251 Jungle Roads 图论->最小生成树 45％ 2005-4-28
1252 Euro Efficiency 63％ 2005-4-26
1253 Markov Trains 74％ 2005-3-31
1254 Hansel and Grethel 50％ 2005-5-7
1255 Floors 57％ 2005-3-31
1256 Anagram 81％ 2005-5-6
1257 Cross-stitch. 74％ 2005-5-4
1258 Agri-Net 62％ 2005-5-7
1259 The Picnic 50％ 2005-3-31
1260 Pearls 66％ 2005-4-26
1261 Huffman Trees 90％ 2004-12-10
1262 Input 60％ 2005-4-11
1263 Reflections 47％ 2005-4-17
1264 SCUD Busters 57％ 2005-5-3
1265 Area 53％ 2005-4-29
1266 Cover an Arc. 83％ 2005-5-7
1267 Fence 78％ 2005-4-19
1268 Forests 94％ 2005-4-22
1269 Intersecting Lines 57％ 2005-5-7
1270 Following orders 58％ 2005-5-7
1271 Nice Milk 策画几何 81％ 2005-3-31
1272 Synchronous Design 87％ 2005-2-24
1273 Drainage Ditches 图论->最大流 66％ 2005-5-7
1274 The Perfect Stall 图论->二分图的最大匹配 80％ 2005-4-29
1275 Cashier Employment 图论->差分束缚体系->无负权回路的有向图的最长路->Bellman-Ford 75％ 2005-4-25
1276 Cash Machine 76％ 2005-4-22
1277 Beer Land 63％ 2005-5-2
1278 BOAT 71％ 2005-3-31
1279 Art Gallery 37％ 2005-4-7
1280 Game 递推 46％ 2005-4-14
1281 MANAGER 模仿 77％ 2005-4-16
1282 庆典的日期 92％ 2005-5-6
1283 Moving Computer 65％ 2005-5-4
1284 Primitive Roots 64％ 2005-4-9
1285 Combinations， Once Again 78％ 2005-4-12
1286 Necklace of Beads 组合数学->POJ前面的题目算法思路【转】（上）olya定理 66％ 2005-4-28
1287 Networking 42％ 2005-4-22
1288 Sly Number 数论->解模线性方程组 80％ 2005-3-16
1289 The Cat in the Hat 78％ 2005-5-2
1290 Grandpa”“s Rubik Cube 28％ 2005-4-15
1291 This Sentence is False 58％ 2005-3-31
1292 Will Indiana Jones Get There？ 70％ 2005-3-31
1293 Duty Free Shop DP 89％ 2005-5-6
1294 Not Too Convex Hull 75％ 2005-3-31
1295 I hate SPAM， but some people love it 38％ 2005-4-30
1296 Noise Effect 53％ 2005-3-31
1297 Supermarket 82％ 2005-4-29
1298 The Hardest Problem Ever送分题 37％ 2005-5-7
1299 Polar Explorer 65％ 2005-5-4
1300 Door Man 58％ 2005-4-10
1301 The Umbrella Problem: 2054 45％ 2005-4-1
1302 Blue Gene， Jr. 23％ 2005-5-7
1303 Byte Me! 60％ 2005-5-5
1304 World”“s Worst Bus Schedule 52％ 2005-4-2
1305 Fermat vs. Pythagoras 47％ 2005-5-3
1306 Combinations 45％ 2005-5-7
1307 Mapping the Route 45％ 2005-4-28
1308 Is It A Tree？ 75％ 2005-4-28
1309 Coconuts， Revisited 64％ 2005-5-3
1310 Nonstop Travel 69％ 2005-4-28
1311 Doing Windows 76％ 2005-3-24
1312 Numerically Speaking 30％ 2005-4-28
1313 Booklet Printing 46％ 2005-4-27
1314 Finding Rectangles 63％ 2005-4-26
1315 Don”“t Get Rooked 28％ 2005-5-4
1316 Self Numbers 递推　同Humble Number一样 48％ 2005-5-7
1317 Do the Untwist 33％ 2005-5-6
1318 Word Amalgamation 39％ 2005-5-6
1319 Pipe Fitters 36％ 2005-4-16
1320 Street Numbers 50％ 2005-5-5
1321 棋查题目 59％ 2005-4-27
1322 Chocolate 递推/组合数学 75％ 2005-5-1
1323 Game Prediction 贪婪 53％ 2005-5-7
1324 Holedox Moving BFS+紧缩储存 79％ 2005-5-7
1325 Machine Schedule 图论->二分图的最大匹配 62％ 2005-5-6
1326 Mileage Bank送分题 67％ 2005-5-7
1327 Moving Object Recognition模仿？ 53％ 2005-5-6
1328 Radar Installation贪婪（差分束缚体系的特例） 80％ 2005-5-7
1329 Circle Through Three Points 66％ 2005-5-5
1330 Nearest Common Ancestors 52％ 2005-5-6
1331 Multiply 47％ 2005-5-7
1332 Finding Liars 52％ 2005-4-2
1333 Christmas Gifts 44％ 2004-12-10
1334 Two Mountaineers 78％ 2005-4-15
1335 Digital Onion 70％ 2004-12-10
1336 The K-League 68％ 2005-4-28
1337 A Lazy Worker 46％ 2005-4-6
1338 Ugly Numbers 递推（有O（n）算法） 70％ 2005-5-7
1339 poker card game 76％ 2005-4-7
1340 The Longest Detour Problem 75％ 2004-12-10
1341 The Strongest Subchains 86％ 2005-2-3
1342 Tag Trees 52％ 2004-12-10
1343 Rooted Trees Isomorphism 88％ 2004-12-10
1344 Tree Size Problem 69％ 2004-12-4
1345 Address Recovery 50％ 2005-3-27
1346 Board of Directors Meeting 60％ 2004-12-10
1347 Triangle 62％ 2005-3-31
1348 Computing 81％ 2005-4-24
1349 Coding of Permutations 74％ 2005-4-7
1350 Cabric Number Problem 73％ 2005-5-5
1351 Number of Locks 58％ 2005-3-12
1352 Quantity of White Mice 83％ 2005-4-27
1353 Color Change of Go Game Pieces 54％ 2005-4-27
1354 Placement of Keys 54％ 2005-5-7
1355 Selecting the Optimal Teaching Fiends 92％ 2005-2-10
1356 Grandpa”“s Other Estate 55％ 2005-4-27
1357 Afshung Pizza Delivery 30％ 2005-4-16
1358 Housing Complexes 59％ 2005-3-31
1359 Spacecraft Malfunction 60％ 2005-3-17
1360 Blue x Red = Bang 73％ 2005-5-4
1361 JaWs 86％ 2004-12-10
1362 Skew Binary 48％ 2005-5-2
1363 Rails 78％ 2005-5-3
1364 King 图论->无负权回路的有向图的最长路->BellmanFord 38％ 2005-3-31
1365 Prime Land 45％ 2005-4-27
1366 Word 79％ 2005-4-27
1367 Time 56％ 2005-4-27
1368 Puzzle 87％ 2005-3-31
1369 Append 75％ 2005-3-29
1370 Gossiping （数论->模线性方程有无解的断定）+（图论->DFS） 56％ 2005-5-3
1371 Tin Cutter 79％ 2005-3-22
1372 FORCAL 60％ 2005-3-30
1373 L-system 95％ 2005-4-16
1374 Crosswords 62％ 2005-4-17
1375 Intervals几何 64％ 2005-4-15
1376 Robot 67％ 2005-4-10
1377 Good Approximation Problem 52％ 2005-4-27
1378 Power Cable Problem 64％ 2005-2-20
1379 Run Away 策画几何-> 83％ 2004-12-10
1380 Equipment Box 几何 80％ 2005-5-6
1381 Secret Code 72％ 2005-5-3
1382 The Proper Key 61％ 2005-5-3
1383 Labyrinth 图论->树的最长路 83％ 2005-5-3
1384 Piggy-Bank 66％ 2005-5-5
1385 Lifting the Stone 75％ 2005-5-3
1386 Play on Words 73％ 2005-5-3
1387 The Constraint Densest Submatrix 76％ 2005-4-19
1388 Hinge Node Problem 31％ 2005-4-17
1389 Area of Simple Polygons 83％ 2004-12-10
1390 Blocks 70％ 2005-3-10
1391 Erdos Numbers n/a 83％ 2005-4-28
1392 Ouroboros Snake 73％ 2005-4-24
1393 Fold-up Patterns 50％ 2004-12-10
1394 Railroad 图论->Dijkstra 78％ 2005-4-27
1395 Cog-Wheels 数学->解正系数的线性方程组 89％ 2005-4-29
1396 Simple Arithmetics 54％ 2005-4-28
1397 The Bulk 33％ 2005-3-31
1398 Complete the sequence! 55％ 2005-4-17
1399 Direct Visibility 60％ 2005-4-26
1400 Complicated Expressions 69％ 2005-5-4
1401 Factorial 46％ 2005-5-7
1402 The Game of Master-Mind 50％ 2005-3-31
1403 Hotline 0％ 2005-2-25
1404 I-Keyboard 56％ 2005-4-27
1405 Heritage 74％ 2005-5-7
1406 A Starship Hakodate-maru 49％ 2005-5-6
1407 e-market 72％ 2005-4-18
1408 Fishnet 几何 30％ 2005-3-31
1409 77377 69％ 2005-5-4
1410 Intersection 82％ 2005-5-3
1411 Calling Extraterrestrial Intelligence Again 送分题 75％ 2005-5-4
1412 Equals are Equals 73％ 2004-12-10
1413 GIGA Universe Cup 59％ 2004-12-10
1414 Life Line 26％ 2004-12-16
1415 Map of Ninja House 78％ 2004-12-10
1416 Shredding Company 40％ 2005-5-4
1417 True Liars 75％ 2004-12-10
1418 Viva Confetti 69％ 2004-12-10
1419 Graph Coloring 58％ 2005-4-13
1420 Spreadsheet 50％ 2005-4-8
1421 Peter”“s Calculator 50％ 2005-5-6
1422 Air Raid 50％ 2005-4-17
1423 Big Number 76％ 2005-5-7
1424 Diamonds 56％ 2005-2-17
1425 Enigmatic Travel 50％ 2005-4-27
1426 Find The Multiple 48％ 2005-5-2
1427 Get Them All 20％ 2005-1-4
1428 Hermes”” Colony 60％ 2004-12-10
1429 Alice and Bobn/a 86％ 2005-3-29
1430 Binary Stirling Numbers 日期处理惩罚 69％ 2005-5-7
1431 Calendar of Maya 模仿 45％ 2005-3-22
1432 Decoding Morse SequencesDP 71％ 2005-5-4
1433 Exchanges 59％ 2005-3-17
1434 Fill the Cisterns! 策画几何->离散化/ 73％ 2005-5-1
1435 Gates 44％ 2005-4-27
1436 Horizontally Visible Segments 73％ 2005-4-29
1437 Chat Rooms 83％ 2005-4-30
1438 One-way Traffic 55％ 2005-4-21
1439 Rhombs 67％ 2005-5-3
1440 Varacious Steve 50％ 2005-4-15
1441 Table 71％ 2005-4-19
1442 Black Box 69％ 2005-4-21
1443 DEL command 60％ 2005-4-11
1444 Parallelepiped walk 40％ 2005-5-2
1445 Random number 数据布局->碓 85％ 2005-3-31
1446 Moscow Time 74％ 2005-5-2
1447 Ambiguous Dates 日期处理惩罚 80％ 2005-4-16
1448 Cube 50％ 2005-5-4
1449 Enigma 0％ 2005-3-31
1450 Gridland 图论（底本TSP题目是NP难的，但这个图斗劲特别，由现成的机关办法） 26％ 2005-5-7
1451 T9 58％ 2005-5-3
1452 Signal Box 0％ 2004-12-10
1453 Delta Encoding and Decoding 77％ 2005-4-2
1454 Factorial Frequencies 60％ 2005-5-1
1455 Crazy tea party 35％ 2005-5-6
1456 Supermarket 73％ 2005-5-5
1457 Lord of the Ring 83％ 2005-3-29
1458 Common Subsequence DP->LCS 67％ 2005-5-5
1459 Power Network 图论->最大流 62％ 2005-5-7
1460 Firefighters 73％ 2005-4-3
1461 Binary Polynomials 85％ 2005-4-3
1462 Random Walk 模仿+解线性方程组 71％ 2005-5-5
1463 Strategic game 贪婪 74％ 2005-5-5
1464 Company 86％ 2005-4-27
1465 Multiple 82％ 2005-5-4
1466 Girls and Boys图论->n/a 85％ 2005-4-30
1467 Symbolic Derivation 67％ 2005-5-6
1468 Rectangles 64％ 2005-5-4
1469 COURSES贪婪 74％ 2005-5-6
1470 Closest Common Ancestors 76％ 2005-5-1
1471 Triangles 55％ 2005-5-1
1472 Instant Complexity 58％ 2005-4-27
1473 There”“s Treasure Everywhere! 51％ 2005-5-7
1474 Video Surveillance 36％ 2005-4-27
1475 Pushing BoxesDP 57％ 2005-3-31
1476 Always On the Run 搜刮->BFS 66％ 2005-4-16
1477 Box of Bricks n/a 56％ 2005-5-2
1478 Island of Logic 29％ 2005-4-27
1479 MBone 33％ 2005-2-26
1480 Optimal Programs 搜刮->BFS 79％ 2005-4-16
1481 The Die Is Cast 送分题 37％ 2005-3-31
1482 It”“s not a Bug， It”“s a Feature! 搜刮->BFS 45％ 2005-4-6
1483 Going in Circles on Alpha Centauri模仿 0％ 2005-3-31
1484 Blowing Fuses 送分题 48％ 2005-4-27
1485 Fast Food DP（似乎就是ioi2000的postoffice） 72％ 2005-4-21
1486 Sorting Slides 图论->拓扑排序 27％ 2005-2-26
1487 Single-Player Games 67％ 2005-3-31
1488 TEX Quotes 51％ 2005-5-6
1489 Egyptian Multiplication 50％ 2005-4-27
1490 Cabinets 57％ 2005-4-27
1491 Pi 42％ 2005-5-7
1492 Up and Down Sequences 27％ 2005-5-6
1493 Machined Surfaces n/a 36％ 2005-5-5
1494 Sunrise 30％ 2005-4-14
1495 LED Test 39％ 2005-4-29
1496 Word Index 36％ 2005-5-6
1497 Molecules 0％ 2005-4-14
1498 Matching Meetings 71％ 2005-4-29
1499 Supercomputer Selection， The Sequel 43％ 2005-4-26
1500 Polygonal Puzzle 86％ 2005-4-26
1501 Word-Search Wonder 55％ 2005-5-1
1502 MPI Maelstrom 42％ 2005-4-9
1503 Integer Inquiry 67％ 2005-5-7
1504 Adding Reversed Numbers 55％ 2005-5-6
1505 Copying Books DP+二分查找 88％ 2005-5-1
1506 Substitution Cipher 94％ 2005-2-27
1507 Commedia dell”” arte 79％ 2005-4-16
1508 Skyscraper Floors 90％ 2005-2-27
1509 Glass Beads n/a 59％ 2005-5-1
1510 Hares and Foxes 数论 85％ 2005-4-13
1511 Invitation Cards 75％ 2005-5-5
1512 Keeps Going and Going and … 模仿 50％ 2005-2-27
1513 Scheduling Lectures DP 64％ 2005-4-22
1514 Metal Cutting 几何 37％ 2005-4-1
1515 Street Directions 图论->把一个无向连通图改革成为有向强连通图 62％ 2005-4-1
1516 Parallel Deadlock 67％ 2005-5-7
1517 u Calculate e 送分题 35％ 2005-5-6
1518 Problem Bee 几何 40％ 2005-5-6
1519 Digital Roots 送分题（位数可能很大） 73％ 2005-5-7
1520 Scramble Sort 排序 50％ 2005-4-20
1521 Entropy 47％ 2005-5-6
1522 N-Credible Mazes 42％ 2005-5-3
1523 SPF 61％ 2005-4-27
1524 Cowculations 28％ 2005-4-29
1525 Hi-Q 20％ 2005-3-31
1526 Call Forwarding 19％ 2005-4-28
1527 Making the Grade 14％ 2005-4-25
1528 Perfection 49％ 2005-5-7
1529 Shipping Routes 79％ 2005-3-31
1530 Slurpys 43％ 2005-5-7
1531 Trooper of Bam 100％ 2004-12-10
1532 Mixed Numbers 93％ 2004-12-10
1533 Mystery 91％ 2005-5-2
1534 Terrorist Attack 79％ 2004-12-10
1535 Forgetful 84％ 2005-5-2
1536 Trains 97％ 2004-12-10
1537 Identifying Legal Pascal Real Constants 75％ 2005-5-6
1538 Extrapolation Using a Difference Table 55％ 2005-5-6
1539 Evaluating Simple C Expressions 53％ 2005-5-4
1540 The Finite State Text-Processing 50％ 2005-2-27
1541 Dart-a-Mania 64％ 2005-4-18
1542 DNA Translation 74％ 2005-4-26
1543 Perfect Cubes 51％ 2005-5-7
1544 A Puzzling Problem 70％ 2005-3-5
1545 Galactic Import 33％ 2005-5-6
1546 Basically Speaking 48％ 2005-5-6
1547 Clay Bully 送分题 49％ 2005-5-4
1548 Robots 60％ 2005-5-1
1549 Bright Bracelet 81％ 2005-5-1
1550 Treadmill 62％ 2005-4-26
1551 Data Mining？ 47％ 2005-5-1
1552 Doubles 51％ 2005-5-6
1553 Fax Regions 78％ 2005-3-31
1554 Tournament Brackets 69％ 2005-4-9
1555 Polynomial Showdown 送分题（很是阴险） 65％ 2005-5-5
1556 The Doors 57％ 2005-4-27
1557 Mapmaker 19％ 2005-4-28
1558 Board Silly 36％ 2005-5-5
1559 Equation Elation 50％ 2005-3-31
1560 18 Wheeler Caravans （aka Semigroups） 53％ 2005-5-5
1561 Another Puzzling Problem 57％ 2005-4-27
1562 Oil Deposits 31％ 2005-5-6
1563 The Snail 送分题 48％ 2005-5-4
1564 Sum It Up 57％ 2005-5-4
1565 Skew Binary 22％ 2005-5-4
1566 Haiku Review 57％ 2005-5-4
1567 WIMP 20％ 2005-2-27
1568 Find the Winning Move 28％ 2005-5-6
1569 Myacm Triangles 23％ 2005-4-15
1570 Exchange Rates 48％ 2005-5-5
1571 Loansome Car Buyer 55％ 2005-4-9
1572 Automatic Editing 78％ 2005-4-27
1573 Robot Motion 43％ 2005-5-6
1574 The Triangle Game 22％ 2005-5-7
1575 Easier Done Than Said？ 52％ 2005-4-30
1576 Colorville 69％ 2005-1-18
1577 Falling Leaves 50％ 2005-3-19
1578 Instruens Fabulam 51％ 2005-4-27
1579 Function Run Fun 42％ 2005-5-4
1580 String Matching 63％ 2005-5-7
1581 A Contesting Decision 34％ 2005-5-3
1582 Which Way Do I Go？ 89％ 2005-3-31
1583 Choose Your Words Carefully 78％ 2005-5-1
1584 A Round Peg in a Ground Hole 77％ 2005-3-31
1585 Helping Florida 73％ 2005-5-1
1586 Three Sides Make a Triangle 91％ 2005-5-5
1587 High and Dry 88％ 2005-3-31
1588 Reverse Roman Notation 72％ 2005-3-31
1589 Unix ls 64％ 2005-5-2
1590 Palindromes 65％ 2005-5-7
1591 M*A*S*H 53％ 2005-4-26
1592 Postscript 77％ 2005-4-24
1593 Radar Scopes 67％ 2005-4-19
1594 Message Routing 50％ 2005-2-27
1595 Prime Cuts 56％ 2005-5-7
1596 Gears on a Board 62％ 2005-4-26
1597 Uniform Generator 63％ 2005-5-1
1598 Excuses， Excuses! 60％ 2005-4-20
1599 Station Balance 52％ 2005-3-31
1600 Centipede Collisions 84％ 2005-4-25
1601 Pizza Anyone？ 搜刮 71％ 2005-5-5
1602 Zip 85％ 2005-4-21
1603 Risk 50％ 2005-5-7
1604 Just the Facts 送分题 64％ 2005-5-2
1605 Horse Shoe Scoring几何 86％ 2005-4-1
1606 Jugs数论/搜刮 26％ 2005-4-29
1607 Deck 61％ 2005-5-2
1608 Banal Tickets 99％ 2005-5-7
1609 Tiling Up Blocks 67％ 2005-5-4
1610 Quad Trees 48％ 2005-3-15
1611 The Suspects 68％ 2005-5-1
1612 The Geodetic Set Problem 71％ 2005-1-22
1613 Cave Raider 71％ 2005-1-4
1614 Space AI Bombs 69％ 2004-12-10
1615 Merging Sequences Problem 94％ 2005-4-18
1616 Harmonic Periods 52％ 2005-5-3
1617 Crypto Columns 48％ 2005-5-7
1618 Decorations 66％ 2005-5-7
1619 EKG Sequence 66％ 2005-5-7
1620 Phone Home 64％ 2005-5-7
1621 Polly Nomials 50％ 2005-1-26
1622 Pushing Boxes 44％ 2004-12-10
1623 Squadtrees 65％ 2005-5-7
1624 This Takes the Cake 52％ 2005-5-7
1625 Censored! 82％ 2005-4-2
1626 Chapayev 87％ 2005-4-22
1627 Experiment “X”: Explosions Expected 89％ 2005-5-7
1629 Fillword 44％ 2005-5-6
1630 Max Separation 73％ 2004-12-10
1631 Bridging signals DP+二分查找 74％ 2005-4-21
1632 Vase collection 图论->最大完全图 66％ 2005-3-26
1633 Gladiators DP 46％ 2005-5-1
1634 Who”“s the boss？ 排序 78％ 2005-5-2
1635 Subway tree systems 图论->不合默示法的二叉树判同 64％ 2005-4-10
1636 Prison rearrangement 50％ 2005-1-13
1637 Sightseeing tour 图论->欧拉回路 67％ 2005-4-29
1638 A number game 博弈论 69％ 2005-4-1
1639 Picnic Planning 图论-> 87％ 2005-4-22
1640 Poly-polygonal Numbers 72％ 2005-4-21
1641 Rational Approximation 数论 36％ 2005-4-22
1642 Stacking Cubes 61％ 2005-4-29
1643 Checker”“s Check 69％ 2005-1-16
1644 To Bet or Not To Bet 66％ 2005-4-21
1645 BSP Trees 54％ 2005-4-21
1646 Double Trouble 高精度 64％ 2005-4-21
1647 One-move checkmate 82％ 2005-5-7
1648 Countryside Highway 86％ 2005-5-6
1649 Market Place 73％ 2005-4-23
1650 Integer Approximation 80％ 2005-5-7
1651 Multiplication Puzzle 73％ 2005-5-7
1652 Holey Cloth 70％ 2005-5-3
1653 Compacting Stickers 57％ 2005-4-21
1654 Area几何 88％ 2005-5-7
1655 Balancing Act 75％ 2005-5-7
1656 Counting Black 39％ 2005-5-6
1657 Distance on Chessboard 送分题 70％ 2005-5-7
1658 Eva”“s Problem 送分题 49％ 2005-5-7
1659 Frogs”” Neighborhood 70％ 2005-4-30
1660 Princess FroG 机关 89％ 2005-5-7
1661 Help JimmyDP 82％ 2005-5-6
1662 CoIns 84％ 2005-4-29
1663 Number Steps 送分题 37％ 2005-5-7
1664 放苹果 组合数学->递推 39％ 2005-5-7
1665 Biker”“s Trip Odometer 43％ 2005-5-7
1666 Candy Sharing Game 43％ 2005-5-7
1667 Peg Game 78％ 2005-4-1
1668 Taxation With Representation Overdone 69％ 2005-4-1
1669 It”“s Logical 68％ 2005-4-16
1670 Obstructed Rook Circuits 83％ 2004-12-10
1671 Rhyme Schemes 53％ 2005-5-5
1672 Fully Diversified Sequences of Sets 55％ 2005-4-1
1673 EXOCENTER OF A TRIANGLE 57％ 2005-4-1
1674 Sorting by Swapping n/a 64％ 2005-5-6
1675 Happy Birthday! 74％ 2005-3-20
1676 What time is it？ 57％ 2005-3-9
1677 Girls”” Day 送分题 83％ 2005-5-5
1678 I Love this Game! 72％ 2005-5-5
1679 The Unique MST n/a 82％ 2005-5-5
1680 Fork（） Makes Trouble 20％ 2004-12-14
1681 Painter”“s Problem 50％ 2005-4-27
1682 Clans on the Three Gorges 71％ 2004-12-10
1683 Puzzlestan 72％ 2005-4-30
1684 Dynamic Declaration Language （DDL） 77％ 2005-4-16
1685 Color Tunnels 62％ 2005-4-29
1686 Lazy Math Instructor 69％ 2005-4-30
1687 Buggy Sat 66％ 2005-4-20
1688 Dolphin Pool 策画几何 78％ 2005-4-30
1689 3002 Rubbery 49％ 2005-2-3
1690 （Your）（（Term）（（Project））） 送分题 69％ 2005-5-4
1691 Painting A Board 搜刮/DP 39％ 2005-4-9
1692 Crossed Matchings DP 53％ 2005-5-5
1693 Counting Rectangles 几何 54％ 2005-4-29
1694 An Old Stone Game 博弈论？ 54％ 2005-4-30
1695 Magazine Delivery 图论-> 59％ 2005-4-30
1696 Space Ant 19％ 2005-1-4
1697 The Erythea Campaign 57％ 2005-4-30
1698 Alice”“s Chance 69％ 2005-5-7
1699 Best Sequence 75％ 2005-5-7
1700 Crossing River 77％ 2005-5-7
1701 Dissatisfying Lift 85％ 2005-5-7
1702 Eva”“s Balance 58％ 2005-5-6
1703 Find them， Catch them 88％ 2005-5-6
1704 Georgia and Bob 77％ 2005-5-1
1705 Generational Replacement 84％ 2005-4-30
1706 References 91％ 2005-2-15
1707 Sum of powers 73％ 2005-5-7
1708 Game 85％ 2005-5-7
1709 Crossword 88％ 2005-4-30
1710 Magic of David Copperfield 68％ 2005-4-30
1711 Puncher 74％ 2005-4-25
1712 Flying Stars DP 70％ 2005-4-30
1713 Divide et unita 搜刮 81％ 2004-12-10
1714 The Cave 搜刮/DP 78％ 2005-1-20
1715 Hexadecimal Numbers n/a 80％ 2005-4-29
1716 Integer Intervals 56％ 2005-5-5
1717 Dominoes DP 55％ 2005-3-21
1718 River Crossing DP 53％ 2005-4-15
1719 Shooting Contest 贪婪 64％ 2005-5-7
1720 SQUARES 65％ 2005-3-17
1721 CARDS 61％ 2005-4-24
1722 SUBTRACT 60％ 2005-3-25
1723 SOLDIERS 60％ 2005-3-27
1724 ROADS 70％ 2005-4-28
1725 BALL 29％ 2005-5-4
1726 Tango Tango Insurrection 81％ 2004-12-10
1727 Advanced Causal Measurements （ACM） 74％ 2004-12-10
1728 A flea on a chessboard 76％ 2005-5-7
1729 Jack and Jill 图论-> 67％ 2005-3-17
1730 Perfect Pth Powers 数论 87％ 2005-5-7
1731 orders 44％ 2005-5-7
1732 Phone numbers DP 87％ 2005-5-2
1733 Parity game 76％ 2005-5-7
1734 Sightseeing trip 图论->Euler回路 61％ 2005-4-25
1735 A Game on the Chessboard 33％ 2005-5-4
1736 Block Town 67％ 2005-5-4
1737 Connected Graph 68％ 2005-4-25
1738 An old Stone Game 博弈论？ 98％ 2005-5-1
1739 Tony”“s Tour 97％ 2004-12-17
1740 A New Stone Game 56％ 2005-4-30
1741 Tree 博弈论？ 94％ 2005-5-2
1742 Coins 93％ 2005-5-5
1743 Musical Theme 91％ 2005-5-2
1744 Elevator Stopping Plan 88％ 2005-4-30
1745 DivisibilityDP 73％ 2005-5-5
1746 Loan 80％ 2005-4-1
1747 Expression 40％ 2005-4-1
1748 Computer Dialogue 56％ 2005-3-11
1749 Lock Manager 53％ 2005-4-1
1750 Dictionary 64％ 2005-4-29
1751 Highways 图论-> 85％ 2005-4-10
1752 Advertisement 贪婪/图论->差分束缚体系 50％ 2005-4-21
1753 Flip Game 搜刮->BFS 63％ 2005-5-4
1754 Buffer Manager 76％ 2005-5-4
1755 Triathlon 策画几何？ 91％ 2005-3-28
1756 Domino Puzzle 58％ 2005-5-2
1757 Binary Search 73％ 2005-4-1
1758 Frontier 61％ 2005-4-21
1759 Garland 53％ 2005-5-7
1760 Disk Tree 79％ 2005-5-7
1761 Easy Task 74％ 2005-5-3
1762 Bundling 20％ 2005-3-16
1763 Shortcut 65％ 2005-5-6
1764 Dice Contest 99％ 2005-3-16
1765 November Rain 98％ 2005-4-22
1766 Football 27％ 2005-3-13
1767 Which is Next 73％ 2005-3-12
1768 Hang or not to hang 70％ 2005-3-14
1769 Minimizing maximizer 80％ 2005-5-3
1770 Special Experiment 树形DP 81％ 2005-3-24
1771 Elevator Stopping Plan DP 73％ 2005-4-27
1772 New Go Game 机关？ 91％ 2005-3-10
1773 Outernet 模仿 62％ 2005-4-16
1774 Fold Paper Strips 几何 72％ 2005-3-10
1775 Sum of Factorials 送分题 79％ 2005-5-6
1776 Task Sequences DP 78％ 2005-4-6
1777 Vivian”“s Problem 数论 74％ 2005-3-24
1778 All Discs Considered 89％ 2005-2-18
1779 Boolean Logic 57％ 2005-4-25
1780 Code 78％ 2005-2-18
1781 In Danger 58％ 2005-5-6
1782 Run Length Encoding 84％ 2005-5-4
1783 Fractran 64％ 2005-2-19
1784 Huffman”“s Greed 51％ 2005-5-1
1785 Binary Search Heap Construction 91％ 2005-4-30
1786 Bridge Hands 60％ 2005-4-23
1787 Charlie”“s Change 87％ 2005-4-23
1788 Building a New Depot 62％ 2005-4-26
1789 Truck History 66％ 2005-5-1
1790 Base Numbers 70％ 2005-4-1
1791 Paper Cutting 36％ 2005-4-23
1792 Hexagonal Routes 71％ 2005-4-23
1793 Storehouse 74％ 2005-4-23
1794 Castle Walls 83％ 2005-5-1
1795 DNA Laboratory 90％ 2005-5-4
1796 Extra Terrestrial PISA Test 49％ 2005-5-2
1797 Heavy Transportation 80％ 2005-5-6
1798 Dory”“s Phonebook 76％ 2005-5-3
1799 Yeehaa! 49％ 2005-5-7
1800 Magic Trick 89％ 2005-5-5
1801 Formula Racing 82％ 2005-5-4
1802 Ancient Plates 80％ 2005-5-6
1803 Box Art 93％ 2004-12-10
1804 Brainman 45％ 2005-5-4
1805 Friends 82％ 2005-5-5
1806 Manhattan 2025 34％ 2005-5-4
1807 Mayan Dates 50％ 2005-5-6
1808 Quadratic Residues 83％ 2005-5-5
1809 Regetni 74％ 2005-5-4
1810 Covering 92％ 2005-4-12
1811 Prime Test 96％ 2005-4-30
1812 Zuma Game 80％ 2004-12-10
1813 Overlapped Shapes 78％ 2004-12-10
1814 Polynomial 97％ 2005-2-2
1815 Friendship 92％ 2004-12-10
1816 Wild Words 89％ 2005-3-13
1817 Traffic Jam 39％ 2005-4-9
1818 ATP 85％ 2005-4-21
1819 Disks 82％ 2005-4-22
1820 Expression 100％ 2005-1-29
1821 Fence 91％ 2005-4-6
1822 Fence2 69％ 2005-4-29
1823 Hotel 87％ 2005-4-27
1824 TwoFour 72％ 2005-1-18
1825 Young 57％ 2005-4-21
1826 The Best Farm 82％ 2005-4-6
1827 A Bunch Of Monsters 74％ 2005-4-21
1828 Monkeys”” Priden/a 66％ 2005-5-7
1829 火力防御网 68％ 2005-2-28
1830 开关题目 77％ 2005-4-17
1831 不定方程组 69％ 2005-4-9
1832 连环锁 76％ 2005-4-17
1833 分列 66％ 2005-5-4
1834 线段处理惩罚 88％ 2004-12-10
1835 宇航员 71％ 2005-4-30
1836 Alignment 88％ 2005-5-2
1837 Balance 51％ 2004-12-13
1838 Banana 74％ 2004-12-14
1839 Cattle 89％ 2005-2-12
1840 Eqs 81％ 2005-4-4
1841 Meadow 78％ 2005-4-30
1842 Parking 40％ 2005-2-12
1843 Shire 94％ 2004-12-13
1844 Sum 45％ 2005-5-6
1845 Sumdiv 91％ 2005-4-17
1846 System 78％ 2005-4-13
1847 Tram 图论->单源最短路
1848 Tree 87％ 2005-5-5
1849 Two 43％ 2005-4-10
1850 Code 65％ 2005-5-2
1851 Map 56％ 2005-4-22
1852 Ants 50％ 2005-4-23
1853 Cat 53％ 2004-12-10
1854 Evil Straw Warts Live 84％ 2005-4-12
1855 Mint 63％ 2005-5-7
1856 Sea Battle 81％ 2005-4-26
1857 To Europe! To Europe! 70％ 2005-5-7
1858 Interesting Maze Game 70％ 2005-4-27
1859 The Perfect Symmetry 71％ 2005-5-4
1860 Currency Exchange 74％ 2005-4-29
1861 Network 68％ 2005-5-7
1862 Stripies 54％ 2005-5-7
1863 Subnumber 87％ 2005-4-1
1864 Funny Card Game 100％ 2005-1-29
1865 Practice 26％ 2005-4-15
1866 Help! 41％ 2005-5-4
1867 Treequivalence 37％ 2005-4-13
1868 Antiarithmetic？ 56％ 2005-5-1
1869 Test 56％ 2005-4-1
1870 Bee Breeding 送分题 64％ 2005-5-4
1871 Bullet Hole几何 83％ 2005-5-4
1872 A Dicey Problem BFS 83％ 2005-5-4
1873 The Fortified Forest 几何+回溯 81％ 2005-5-6
1874 Trade on Verweggistan DP 83％ 2005-5-6
1875 Robot 几何 78％ 2005-4-8
1876 The Letter Carrier”“s Rounds 模仿 95％ 2005-5-3
1877 Flooded! 数据布局->堆 69％ 2005-5-5
1878 Jill”“s Bike 81％ 2005-5-6
1879 Tempus et mobilius Time and motion 模仿+组合数学->POJ前面的题目算法思路【转】（下）olya定理 52％ 2005-5-5
1880 Variable Radix Huffman Encoding 81％ 2005-2-18
1881 Sail Race 43％ 2005-2-18
1882 Stamps 搜刮+DP 81％ 2005-5-5
1883 Theseus and the Minotaur 模仿 74％ 2005-3-19
1884 Train Time 95％ 2005-3-15
1885 Uncompress 78％ 2005-5-5
1886 Borrowers 82％ 2005-2-18
1887 Testing the CATCHER DP 67％ 2005-4-20
1888 Crossword Answers 62％ 2005-4-18
1889 Package Pricing DP 96％ 2005-2-18
1890 Switching Channels 40％ 2005-2-18
1891 Typesetting 99％ 2005-2-18
1892 VTAS - Vessel Traffic Advisory Service 100％ 2004-12-10
1893 Monitoring Wheelchair Patients 模仿+几何 84％ 2005-2-18
1894 Alternative Scale of Notation 76％ 2005-4-11
1895 Bring Them There 88％ 2005-4-14
1896 Code Formatting 74％ 2005-4-11
1897 Data Mining 85％ 2005-4-27
1898 Entropy 87％ 2005-4-13
1899 Farmer Bill”“s Problem 85％ 2005-5-4
1900 Game 76％ 2005-5-1
1901 Hypertransmission 88％ 2005-5-5
1902 Illumination 95％ 2005-4-21
1903 Jurassic Remains 76％ 2005-4-28
1904 King”“s Quest 93％ 2005-4-21
1905 Expanding Rods 88％ 2005-5-7
1906 Three powers 70％ 2005-5-7
1907 Work Reduction 80％ 2005-5-5
1908 Grid Speed 91％ 2005-5-5
1909 Marbles on a tree 61％ 2005-5-5
1910 Adam”“s Genes 40％ 2005-4-1
1911 A Well-Formed Problem 33％ 2005-4-1
1912 A highway and the seven dwarfs 97％ 2005-5-7
1913 Cocktails 92％ 2004-12-10
1914 Cramer”“s Rule 87％ 2005-4-27
1915 Knight Moves 搜刮->BFS 72％ 2005-5-3
1916 Rat Attack 数据布局->？ 77％ 2005-5-4
1917 Automatic Poetry 49％ 2005-5-6
1918 Ranking List 79％ 2005-4-20
1919 Ship Journey 93％ 2005-5-5
1920 Towers of Hanoi 85％ 2005-5-4
1921 Paper Cut 71％ 2005-4-16
1922 Ride to School 70％ 2005-5-6
1923 Fourier”“s Lines 81％ 2005-5-6
1924 The Treasure 89％ 2005-5-4
1925 Spiderman 95％ 2005-5-6
1926 Pollution 80％ 2005-5-5
1927 Area in Triangle 59％ 2005-3-23
1928 The Peanuts 61％ 2005-5-6
1929 Calories Fat 49％ 2005-5-7
1930 Dead Fraction 82％ 2005-5-4
1931 Biometrics 63％ 2005-5-4
1932 XYZZY 76％ 2005-5-7
1933 A Brief Gerrymander 84％ 2005-5-4
1934 Trip 86％ 2005-5-5
1935 Journey 82％ 2005-5-3
1936 All in All DP？ 76％ 2005-5-6
1937 Balanced Food 84％ 2005-3-31
1938 California Jones and the Gate to Freedom 63％ 2005-3-31
1939 Diplomatic License 51％ 2005-5-3
1940 Polygon Programming with Ease 39％ 2005-5-3
1941 The Sierpinski Fractal 52％ 2005-5-3
1942 Paths on a Grid 79％ 2005-5-3
1943 Hall of Fountains 55％ 2005-3-31
1944 Fiber Communications 81％ 2005-5-6
1945 Power Hungry Cows 92％ 2005-5-1
1946 Cow Cycling DP 62％ 2005-4-29
1947 Rebuilding Roads二分 69％ 2005-4-30
1948 Triangular Pastures 78％ 2005-4-30
1949 Chores 68％ 2005-5-3
1950 Dessert 66％ 2005-5-3
1951 Extra Krunch 81％ 2005-5-6
1952 BUY LOW， BUY LOWER 80％ 2005-4-30
1953 World Cup Noise 55％ 2005-5-5
1954 Warez Test 98％ 2004-12-10
1955 Rubik”“s Cube 54％ 2005-3-18
1956 Pumps and Pipes 76％ 2004-12-10
1957 Beehives 80％ 2005-4-30
1958 Strange Towers of Hanoi 40％ 2005-5-7
1959 Darts 53％ 2005-4-30
1960 Time Planner 79％ 2004-12-10
1961 Period 89％ 2005-5-7
1962 Corporative Network 76％ 2005-5-1
1963 Cave Exploration 60％ 2005-4-1
1964 City Game 75％ 2005-5-2
1965 Cube Root 77％ 2005-4-21
1966 Cable TV Network 69％ 2005-5-2
1967 Alibaba 78％ 2005-3-24
1968 Booklets 67％ 2005-4-17
1969 Count on Canton 57％ 2005-5-7
1970 The Game 76％ 2005-4-27
1971 Parallelogram Counting 83％ 2005-5-2
1972 Dice Stacking 36％ 2005-4-27
1973 Software Company 79％ 2005-4-27
1974 The Happy Worm 86％ 2005-4-27
1975 Median Weight Bead 63％ 2005-4-27
1976 A Mini Locomotive 47％ 2005-4-27
1977 Odd Loving Bakers 88％ 2005-4-27
1978 Hanafuda Shuffle 26％ 2005-4-28
1979 Red and Black 23％ 2005-5-7
1980 Unit Fraction Partition 75％ 2005-5-2
1981 Circle and Points 81％ 2005-4-15
1982 Water Tank 50％ 2005-4-1
1983 Name the Crossing 77％ 2005-4-17
1984 Navigation Nightmare 84％ 2005-5-5
1985 Cow Marathon 图论->有向无环图的最长路 80％ 2005-5-5
1986 Distance Queries 87％ 2005-5-6
1987 Distance Statistics 88％ 2005-5-7
1988 Cube Stacking 81％ 2005-5-5
1989 The Cow Lineup 62％ 2005-5-5
1990 MooFest 87％ 2005-5-5
1991 Turning in Homework 63％ 2005-5-6
1992 Jack 53％ 2005-4-4
1993 Caleidoscope 36％ 2005-3-31
1994 Logic 0％ 2004-12-10
1995 Raising Modulo Numbers 数论->大数的幂求余 58％ 2005-5-6
1996 The Highest Profits 40％ 2005-3-31
1997 Word Puzzle 79％ 2004-12-10
1998 Lloyd Fifteen Puzzle 50％ 2005-3-31
1999 Quorf 50％ 2005-3-31
2000 Gold Coins 39％ 2005-5-7
2001 Shortest Prefixes 65％ 2005-5-4
2002 Squares 83％ 2005-5-3
2003 Hire and Fire 66％ 2005-5-4
2004 Mix and Build 80％ 2005-5-4
2005 Blackjack 81％ 2005-5-7
2006 Litmus Test 42％ 2005-5-1
2007 Scrambled Polygon 59％ 2005-5-4
2008 Moo University - Team Tryouts 83％ 2005-5-5
2009 Moo University - Emergency Pizza order 86％ 2005-5-5
2010 Moo University - Financial Aid 84％ 2005-5-5
2011 Primary X-Subfactor Series 72％ 2005-4-23
2012 Triangle Cuts 85％ 2005-3-5
2013 Symmetric order 41％ 2005-5-6
2014 Flow Layout 27％ 2005-5-5
2015 Permutation Code 65％ 2005-5-7
2016 Ink Blots 72％ 2005-5-1
2017 Speed Limit 36％ 2005-5-6
2018 Best Cow Fences 90％ 2005-5-5
2019 Cornfields 65％ 2005-5-5
2020 MisLED 84％ 2005-5-4
2021 Relative Relatives 54％ 2005-5-4
2022 Syntax Included 74％ 2005-4-17
2023 Choose Your Own Adventure 65％ 2005-5-6
2024 Know When to Hold “”em 73％ 2005-3-19
2025 Cubic Rube 81％ 2005-3-19
2026 As the Crow Flies 43％ 2005-3-19
2027 No Brainern/a 29％ 2005-5-6
2028 When Can We Meet？ 44％ 2005-5-7
2029 Get Many Persimmon Trees 22％ 2005-5-6
2030 The Secret Number 66％ 2005-4-19
2031 Building a Space Station 24％ 2005-4-17
2032 Square Carpets 75％ 2005-5-6
2033 Alphacode 78％ 2005-5-6
2034 Anti-prime Sequences 62％ 2005-5-3
2035 Hit or Miss 64％ 2005-4-28
2036 I Conduit! 86％ 2005-5-4
2037 Roll Playing Games 79％ 2005-5-5
2038 Team Rankings 46％ 2005-4-28
2039 To and Fro 36％ 2005-5-7
2040 Translations 60％ 2005-3-19
2041 Unreliable Message 17％ 2005-4-29
2042 Lagrange”“s Four-Square Theorem 41％ 2005-4-27
2043 Area of Polygons 65％ 2005-4-27
2044 Weather Forecast 73％ 2005-4-28
2045 Molecular Formula 35％ 2005-5-5
2046 Gap 82％ 2005-5-7
2047 Concert Hall Scheduling 69％ 2005-4-29
2048 Monster Trap 86％ 2005-4-20
2049 Finding Nemo 图论->最短路 86％ 2005-5-6
2050 Searching the Web 模仿（须要高效实现） 80％ 2005-5-2
2051 Argus 送分题（最好用堆，不消也可以过） 63％ 2005-5-7
2052 Fun Game 83％ 2005-4-27
2053 Square 81％ 2005-5-6
2054 Color a Tree 贪婪 79％ 2005-5-6
2055 Kid”“s Problem 89％ 2005-4-5
2056 The Separator in Grid 75％ 2005-5-7
2057 The Lost House 66％ 2005-4-28
2058 Word Encoding 63％ 2005-5-2
2059 Watchdog 31％ 2005-5-3
2060 Taxi Cab Scheme 73％ 2005-5-2
2061 Pseudo-random Numbers 数论 85％ 2005-5-4
2062 Card Game Cheater 46％ 2005-5-3
2063 Investment 66％ 2005-5-2
2064 Pipes 79％ 2005-3-20
2065 SETI 39％ 2005-4-20
2066 Minimax Triangulation 69％ 2005-5-2
2067 Young， Poor and Busy 0％ 2005-2-3
2068 Nim 29％ 2005-3-26
2069 Super Star 94％ 2005-2-3
2070 Filling Out the Team 49％ 2005-5-6
2071 Auctions R Us 73％ 2005-4-1
2072 GHOST 89％ 2005-1-17
2073 Doggone Moles 76％ 2005-3-17
2074 Line of Sight 82％ 2005-4-9
2075 Tangled in Cables 54％ 2005-5-6
2076 All Roads Lead to Albuquerque， er， Rome 89％ 2005-3-19
2077 Balanced Budget Initiative 89％ 2005-4-9
2078 Matrix 53％ 2005-5-6
2079 Triangle 86％ 2005-5-7
2080 Calendar 日期处理惩罚 60％ 2005-5-6
2081 Recaman”“s Sequence 79％ 2005-5-7
2082 Terrible Sets 分治/ 56％ 2005-4-29
2083 Fractal 递归 37％ 2005-5-1
2084 Game of Connections 递推（不必高精度） 61％ 2005-5-7
2085 Inversion 72％ 2005-5-4
2086 Land Division Tax 69％ 2005-4-6
2087 Petanque 73％ 2005-5-5
2088 Long Night of Museums 82％ 2005-4-23
2089 Magic Trick 38％ 2005-4-26
2090 Two-Stacks Solitaire 90％ 2005-4-3
2091 Zing Zhu”“s Oyster Farm 65％ 2005-4-12
2092 Grandpa is Famous 53％ 2005-5-7
2093 Cutting Edge 87％ 2005-4-11
2094 Angry Teacher 95％ 2005-3-21
2095 Beth Tableaux 67％ 2005-2-24
2096 Collecting Bugs 83％ 2005-3-13
2097 Drawing Windows 0％ 2004-12-10
2098 Ellipse 66％ 2005-3-27
2099 Fool”“s Day 98％ 2005-4-12
2100 Graveyard Design 90％ 2005-5-4
2101 Honey and Milk Land 41％ 2005-5-7
2102 Incredible! Impossible! 91％ 2005-4-23
2103 Jackpot 93％ 2005-2-21
2104 K-th Number 90％ 2005-5-7
2105 IP Address 送分题 47％ 2005-5-7
2106 Boolean Expressions 73％ 2005-5-7
2107 Gear Profiles 73％ 2005-4-18
2108 Lazy Pianist 83％ 2005-4-20
2109 Power of Cryptography 61％ 2005-5-6
2110 Mountain Walking 74％ 2005-5-5
2111 Millenium Leapcow 66％ 2005-5-4
2112 Optimal Milking 62％ 2005-5-4
2113 Agents 83％ 2005-4-2
2114 Boatherds 64％ 2005-5-3
2115 C Looooops 数论->解模线性方程 90％ 2005-5-7
2116 Death to Binary？ 71％ 2005-4-30
2117 Electricity 74％ 2005-2-22
2118 Firepersons 71％ 2005-4-15
2119 God of the Vile Baskers 88％ 2005-3-4
2120 Herbalists 33％ 2005-4-13
2121 Inglish-Number Translator 67％ 2005-5-5
2122 Japan Plotter Driver 59％ 2005-4-13
2123 Artinals 67％ 2005-4-2
2124 Crankshaft 79％ 2005-5-7
2125 Destroying The Graph 84％ 2005-5-6
2126 Factoring a Polynomial 59％ 2005-5-7
2127 Greatest Common Increasing Subsequence 87％ 2005-5-7
2128 Highways 69％ 2005-5-7
2129 Invariant Polynomials 65％ 2005-5-7
2130 Jogging 100％ 2005-1-29
2131 Key Insertion 89％ 2005-5-4
2132 Cow Math 81％ 2005-5-6
2133 Cow Imposters 80％ 2005-5-3
2134 Traffic Lights 81％ 2005-5-6
2135 Farm Tour 88％ 2005-5-7
2136 Vertical Histogram 送分题 63％ 2005-5-7
2137 Cowties 77％ 2005-5-7
2138 Travel Games 77％ 2005-5-7
2139 Six Degrees of Cowvin Bacon 62％ 2005-5-2
2140 Herd Sumsn/a 46％ 2005-5-7
2141 Message Decowding 45％ 2005-5-4
2142 The Balance 72％ 2005-5-5
2143 Make a Sequence 51％ 2005-4-22
2144 Leaky Cryptography 18％ 2005-4-30
2145 Pathological Paths 51％ 2005-4-30
2146 Confusing Login Names 78％ 2005-5-5
2147 Dice Puzzle 40％ 2005-4-21
2148 Color the Map 69％ 2005-3-31
2149 Inherit the Spheres 86％ 2005-4-1
2150 Crossing Prisms 79％ 2005-5-6
2151 Check the difficulty of problems 75％ 2005-5-5
2152 Fire 91％ 2005-3-17
2153 Rank List 80％ 2005-5-5
2154 Color 80％ 2005-5-7
2155 Matrix 93％ 2005-5-7
2156 National Day Celebration 85％ 2005-4-14
2157 Maze 66％ 2005-5-6
2158 A Difficult Mathematics Problem 79％ 2005-5-5
2159 Ancient Cipher 69％ 2005-5-5
2160 Box 65％ 2005-5-5
2161 Chandelier 73％ 2005-5-5
2162 Document Indexing 86％ 2005-4-26
2163 Easy Trading 52％ 2005-5-5
2164 Find the Border 60％ 2005-5-1
2165 Gunman 策画几何 62％ 2005-5-6
2166 Heapsort 48％ 2005-5-6
2167 Irrelevant Elements 85％ 2005-5-6
2168 Joke with Turtles 84％ 2005-5-7
2169 Kingdom of Magic 69％ 2005-5-6
2170 Lattice Animals 36％ 2005-5-1
2171 Amusing Numbers 62％ 2005-3-30
2172 Bricks 87％ 2005-3-30
2173 Cricket Field 71％ 2005-5-3
2174 Decoding Task 44％ 2005-5-4
2175 Evacuation Plan 79％ 2005-3-30
2176 Folding 66％ 2005-4-28
2177 Ghost Busters 0％ 2005-1-28
2178 Heroes Of Might And Magic 78％ 2005-4-14
2179 Inlay Cutters 列举 65％ 2005-4-22
2180 Bale Figures 79％ 2005-5-5
2181 Jumping Cows 递推 58％ 2005-5-7
2182 Lost Cows ->线段树/ 41％ 2005-5-7
2183 Bovine Math Geniuses 51％ 2005-5-7
2184 Cow Exhibition DP 82％ 2005-5-7
2185 Milking Grid 58％ 2005-4-30
2186 Popular Cows 87％ 2005-5-7
2187 Beauty Contest 84％ 2005-5-4
2188 Cow Laundry 48％ 2005-5-6
2189 Romeo Meets Juliet 61％ 2005-4-28
2190 ISBN 送分题 72％ 2005-5-7
2191 Mersenne Composite Numbers数论 62％ 2005-5-7
2192 Zipper DP->LCS变形 76％ 2005-5-7
2193 Lenny”“s Lucky Lotto Lists DP 71％ 2005-5-3
2194 Stacking Cylinders 几何 27％ 2005-5-3
2195 Going Home 图论->二分图的最大权匹配 82％ 2005-5-4
2196 Specialized Four-Digit Numbers 送分题 25％ 2005-5-7
2197 Jill”“s Tour Paths 图论-> 85％ 2005-5-3
2198 Boundaries on 81％ 2005-4-9
2199 Rate of Return 高精度 64％ 2005-5-5
2200 A Card Trick 模仿 52％ 2005-4-10
2201 Cartesian Tree 82％ 2005-5-7
2202 Strange Graph 78％ 2005-5-6
2203 Patience 10％ 2005-3-25
2204 Commuter train 56％ 2005-3-25
2205 Self-Replicating Numbers 83％ 2005-3-9
2206 Magic Multiplying Machine 84％ 2005-4-15
2207 Intuitionistic Logic 87％ 2005-3-18
2208 Pyramids 83％ 2005-5-5
2209 The King 44％ 2005-5-7
2210 Metric Time 日期处理惩罚 80％ 2005-4-18
2211 Photograph 38％ 2005-3-30
2212 Cavern 52％ 2005-4-16
2213 Code 36％ 2005-4-24
2214 Regions 37％ 2005-4-29
2215 Parliament 4％ 2005-5-1
2216 Roulette 89％ 2005-3-30
2217 Secretary 42％ 2005-3-30
2218 Does This Make Me Look Fat？ 45％ 2005-5-1
2219 Manifest Destiny 58％ 2005-3-30
2220 Treasure Hunters 33％ 2005-3-30
2221 Frogger”“s For Dinner 25％ 2005-3-30
2222 Deeper Blue 30％ 2005-5-4
2223 Get Out “”Da Way! 75％ 2005-4-28
2224 Missing Piece 2001 71％ 2005-3-30
2225 Asteroids! 66％ 2005-5-3
2226 Muddy Fields 85％ 2005-5-3
2227 The Wedding Juicer 73％ 2005-5-6
2228 Naptime 74％ 2005-5-3
2229 Sumsets 83％ 2005-5-6
2230 Watchcow 76％ 2005-5-7
2231 Moo Volume 85％ 2005-5-7
2232 New Stone-Forfex-Cloth Game 74％ 2005-4-23
2233 GAME AGAIN! 94％ 2005-3-15
2234 Matches Game 61％ 2005-5-7
2235 Triangularize the Convex Hull 80％ 2005-2-28
2236 Wireless Network 73％ 2005-5-6
2237 Can 1 Marine win 2 Zerglings？ 81％ 2005-4-1
2238 Computer Basketball Game 76％ 2005-3-28
2239 Selecting Courses 图论->二分图的最大匹配 64％ 2005-5-5
2240 Arbitrage 65％ 2005-5-2
2241 The Tower of Babylon 16％ 2005-5-5
2242 The Circumference of the Circle 31％ 2005-5-7
2243 Knight Moves 搜刮->BFS 19％ 2005-5-7
2244 Eeny Meeny Moo 34％ 2005-5-5
2245 Lotto 24％ 2005-5-6
2246 Matrix Chain Multiplication 44％ 2005-5-6
2247 Humble Numbers 递推（最优O（n）算法） 59％ 2005-5-7
2248 Addition Chains 54％ 2005-5-6
2249 Binomial Showdown 70％ 2005-5-6
2250 Compromise 50％ 2005-5-7
2251 Dungeon Master 54％ 2005-5-5
2252 Equation Solver 10％ 2005-5-7
2253 Frogger 图论->Dijkstra变形（和1295是一样的） 45％ 2005-5-4
2254 Globetrotter几何 56％ 2005-5-7
2255 Tree Recovery 26％ 2005-5-6
2256 Artificial Intelligence？ 17％ 2005-5-5
2257 Balancing Bank Accounts 25％ 2005-5-5
2258 The Settlers of Catan 31％ 2005-5-6
2259 Team Queue 70％ 2005-5-5
2260 Error Correction 43％ 2005-5-7
2261 France “”98 递推 53％ 2005-5-5
2262 Goldbach”“s Conjecture 59％ 2005-5-7
2263 Heavy Cargo 45％ 2005-5-2
2264 Advanced Fruits 65％ 2005-5-5
2265 Bee Maja 30％ 2005-5-5
2266 Quadtree 78％ 2005-5-5
2267 From Dusk till Dawn or: Vladimir the Vampire 80％ 2005-5-6
2268 Euro Cup 2000 33％ 2005-5-5
2269 Friends 52％ 2005-5-5
2270 Quadtree II or: Florida Jones strikes back 33％ 2005-5-5
2271 HTML 58％ 2005-5-7
2272 Bullseye 60％ 2005-5-7
2273 An Excel-lent Problem 31％ 2005-5-4
2274 The Race 86％ 2005-5-5
2275 Flipping Pancake 机关 43％ 2005-5-3
2276 Model Rocket Height 32％ 2005-5-4
2277 Region Filling 94％ 2005-3-14
2278 Histology Assistant 89％ 2005-4-7
2279 Mr. Young”“s Picture Permutations 56％ 2005-4-8
2280 Amphiphilic Carbon Molecules 52％ 2005-4-25
2281 Link and Pop – the Block Game 67％ 2005-5-5
2282 The Counting Problem 59％ 2005-5-7
2283 Different Digits 82％ 2005-5-5
2284 That Nice Euler Circuit 策画几何 71％ 2005-4-29
2285 The Floor Bricks 60％ 2005-5-6
2286 The Rotation Game 90％ 2005-5-3
2287 Tian Ji – The Horse Racing 86％ 2005-5-7
2288 Islands and Bridges 88％ 2005-4-27
2289 Jamie”“s Contact Groups 图论->收集流？ 76％ 2005-5-2
2290 House Numbers 76％ 2005-5-2
2291 Rotten Ropes 送分题 39％ 2005-5-7
2292 Optimal Keypad DP 51％ 2005-4-23
2293 Hey， Pay Day! 68％ 2005-4-19
2294 Unfoldung 100％ 2005-4-16
2295 A DP Problem 76％ 2005-5-3
2296 Map Labeler 89％ 2005-3-31
2297 Balanced Chemical Equations 63％ 2005-3-17
2298 Great Circle 87％ 2005-5-4
2299 Ultra-QuickSort 排序->归并排序 81％ 2005-5-5
2300 Up the Ante 71％ 2005-4-12
2301 Beat the Spread! 50％ 2005-5-6
2302 Traditional BINGO 46％ 2005-5-4
2303 Russian Dolls 80％ 2005-5-4
2304 Combination Lock 送分题 31％ 2005-5-7
2305 Basic remains 62％ 2005-5-4
2306 Genealogical Research 56％ 2005-5-4
2307 Treasure Map 27％ 2005-5-7
2308 Dearboy”“s Puzzle 94％ 2005-4-15
2309 BST 送分题 43％ 2005-5-7
2310 Cubic Tick-Tack-Toe 95％ 2005-3-25
2311 Cutting Game 博弈论 94％ 2005-5-5
2312 Battle City 搜刮->BFS 77％ 2005-5-3
2313 Sequence 71％ 2005-5-6
2314 POJ language 模仿 75％ 2005-4-2
2315 Football Game 几何 85％ 2005-4-18
2316 SPIN 59％ 2005-5-7
2317 SHAKE 56％ 2005-5-3
2318 TOYS 49％ 2005-5-2
2319 COMPRESS 81％ 2005-4-10
2320 SHEET 47％ 2005-4-18
2321 GYM 35％ 2005-5-3
2322 PLANKS 59％ 2005-3-30
2323 PERMS 41％ 2005-5-1
2324 Intellectual Property 71％ 2005-3-30
2325 Persistent Numbers 42％ 2005-5-7
2326 Major Scales 46％ 2005-5-1
2327 Dumb Bones 49％ 2005-4-29
2328 Guessing Game 70％ 2005-5-7
2329 Nearest number - 2 76％ 2005-5-5
2330 Advanced ASCII Cubes 32％ 2005-5-5
2331 Water pipe 90％ 2005-4-30
2332 One is good， but two is better 69％ 2005-5-6
2333 Beach cut 80％ 2005-5-4
2334 Simple prefix compression 60％ 2005-5-5
2335 Temple of Dune 55％ 2005-4-7
2336 Ferry Loading II 51％ 2005-5-6
2337 Catenyms 84％ 2005-5-6
2338 Basic 70％ 2005-5-3
2339 Rock， Scissors， Paper 35％ 2005-5-6
2340 Memory management 81％ 2005-5-2
2341 Spell checker 68％ 2005-5-3
2342 Anniversary party 35％ 2005-5-5
2343 Airline company 38％ 2005-5-7
2344 Nikifor 53％ 2005-5-4
2345 Central heating 46％ 2005-5-6
2346 Lucky tickets 组合数学 43％ 2005-5-4
2347 Equations 82％ 2005-5-7
2348 Euclid”“s Game 66％ 2005-5-7
2349 Arctic Network 48％ 2005-5-4
2350 Above Average 40％ 2005-5-7
2351 Time Zones 时候处理惩罚 78％ 2005-5-7
2352 Stars 81％ 2005-5-7
2353 Ministry 71％ 2005-5-4
2354 Titanic 80％ 2005-5-2
2355 Railway tickets 62％ 2005-5-5
2356 Find a multiple 71％ 2005-5-1
2357 Labyrinth 47％ 2005-5-2
2358 Queens in peaceful positions 62％ 2005-5-2
2359 Questions 71％ 2005-5-6
2360 Trains 81％ 2005-5-4
2361 Tic Ta Toe 75％ 2005-5-7
2362 Square 79％ 2005-5-6
2363 Blocks 54％ 2005-5-7
2364 Faucet Flow 83％ 2005-5-4
2365 Rope 58％ 2005-5-5
2366 Sacrament of the sum 83％ 2005-4-28
2367 Genealogical tree 24％ 2005-5-4
2368 Buttons 73％ 2005-4-29
2369 Permutations 52％ 2005-5-3
2370 Democracy in danger 19％ 2005-5-4
2371 Questions and answers 33％ 2005-5-7
2372 D++ Again 64％ 2005-5-2
2373 Dividing the Path 72％ 2005-5-1
2374 Fence Obstacle Course 67％ 2005-5-1
2375 Cow Ski Area 82％ 2005-5-7
2376 Cleaning Shifts 76％ 2005-5-3
2377 Bad Cowtractors 65％ 2005-5-3
2378 Tree Cutting 43％ 2005-5-5
2379 ACM Rank Table 模仿+排序 83％ 2005-4-29
2380 Sales Report n/a 80％ 2005-4-20
2381 Random Gap数论 84％ 2005-5-1
2382 Radio Coverage 88％ 2005-4-12
2383 Circle Drawing 94％ 2005-5-1
2384 Harder Sokoban Problem 57％ 2005-4-12
2385 Apple Catching DP（像NOI98“免费馅饼”） 65％ 2005-5-1
2386 Lake Counting 53％ 2005-5-7
2387 Til the Cows Come Home 83％ 2005-5-3
2388 Who”“s in the Middle 送分题（排序） 42％ 2005-5-5
2389 Bull Math 52％ 2005-5-7
2390 Bank Interest 送分题 36％ 2005-5-7
2391 Ombrophobic Bovines 71％ 2005-5-4
2392 Space Elevator 73％ 2005-5-6
2393 Yogurt factory 59％ 2005-5-3
2394 Checking an Alibi 71％ 2005-5-3
2395 Out of Hay 图论->Dijkstra变形 70％ 2005-5-6
2396 Budget 86％ 2005-4-30
2397 Spiderman 71％ 2005-5-2
2398 Toy Storage 46％ 2005-5-2
2399 A Mayor Problem 92％ 2005-4-23
2400 Supervisor， Supervisee 图论->二分图的最大权匹配？ 89％ 2005-5-3
2401 Street Polygon 100％ 2005-4-29
2402 Palindrome Numbers 66％ 2005-5-7
2403 Hay Points 送分题 28％ 2005-5-7
2404 Jogging Trails 73％ 2005-5-3
2405 Beavergnaw 29％ 2005-5-7
2406 Power Strings 61％ 2005-5-7
2407 Relatives 71％ 2005-5-6
2408 Anagram Groups 88％ 2005-5-5
2409 Let it Bead 组合数学->POJ前面的题目算法思路【转】（下）olya定理 54％ 2005-5-6
2410 Simple Computers 82％ 2005-5-5
2411 Mondriaan”“s Dream 50％ 2005-5-6
2412 Equidistance 75％ 2005-4-25
2413 How many Fibs？ 75％ 2005-5-6
2414 Phylogenetic Trees Inherited 58％ 2005-5-5
2415 Hike on a Graph 44％ 2005-5-6
2416 Return of the Jedi 图论-> 69％ 2005-5-5
2417 Discrete Logging 数论 62％ 2005-5-6
2418 Hardwood Species 二分查找 80％ 2005-5-7
2419 Forests 列举 70％ 2005-5-6
2420 A Star not a Tree？ 68％ 2005-5-7
2421 Constructing Roads 图论->最小生成树 74％ 2005-5-7
2422 The Wolves and the Sheep 73％ 2005-5-7
2423 The Parallel Challenge Ballgame 几何 79％ 2005-5-6
2424 Flo”“s Restaurant 数据布局->堆 78％ 2005-5-7
2425 A Chess Game 博弈论 81％ 2005-5-7
2426 RemainderBFS 91％ 2005-5-7
2427 Smith”“s Problem 85％ 2005-5-6
2428 Surface Reconstruction 62％ 2005-5-7
2429 GCD & LCM Inverse 96％ 2005-5-12
2430 Lazy Cows DP->数据紧缩 52％ 2005-5-12
2431 Expedition 81％ 2005-5-12
2432 Around the world 64％ 2005-5-11
2433 Landscaping 53％ 2005-5-11
2434 Waves 50％ 2005-5-11
2435 Navigating the City 33％ 2005-5-12
2436 Disease Manangement 56％ 2005-5-12
2437 Muddy roads 56％ 2005-5-12
3122 Pie 二分
3159 Candies 图论->单源最短路
3173 Parkside”“s Triangle 简单题
3176 Cow Bowling 动态规划