HOJ 题目分类

模拟题、枚举:

1000 A+B
1001 A+B+C
1004 Prime Palindromes
1006   Weird Clock
1009 Fat Cat
1010 The Angle
1025 Skew Binary
1043 Maya Calendar
1054 Game Prediction
1057 Mileage Bank
1069 Prime Land
1071 Time
1076 Ordered Fractions
1078 u Calculate e
1080 Digital Roots
1084 Booklet Printing
1087 Self Numbers
1104 Expanding Fractions
1107 Prime Cuts
1109 Uniform Generator
1128   Perfect Cubes  
1142 S-Trees
1148 Gridland
1153 Ecological Bin Packing
1154 The Skyline Problem
1155   国家利益
1156 The Cat in the Hat
1160 Power of Cryptography
1165 Mutant Flatworld Explorers
1166 Greedy Gift Givers
1174 Software CRC
1179 The Dole Queue
1181 Ugly Numbers
1183 Street Numbers
1189 Student Grants
1190 Gondwanaland Telecom
1200 All Squares
1209 Cola
1214 Fibonacci Coding
1216   Where's the Marble
1219 A Flea on a Chessboard
1221 Perfect Pth Powers
1238 Border
1243 Extrapolation Using a Difference Table
1247 Perfection
1271 Biker's Trip Odometer
1272 Candy Sharing Game
1280 Unreliable Message
1296 Big Number
1305 A Contesting Decision
1317 Flip and Shift
1318 Moving Tables
1321 Parencodings
1331 Deck
1334 Ratio
1337 Web Navigation
1347 487-3279
1365 Digital Product
1370 Candy
1384 Palindrome Number
1391 Boastin' Red Socks
1401 Gigantic Sums
1404 M*A*S*H
1408 Pi
1409 Up and Down Sequences
1410 Machined Surfaces
1415 Does This Make Me Look Fat?
1425 Polar Explorer
1435 Integer Inquiry
1439 The Circumference of the Circle
1442 Lotto
1443 Matrix Chain Multiplication
1453 Artificial Intelligence?
1457 Error Correction
1462 Bee Maja
1477 Simple Computers
1480 Diplomatic License
1486 The Longest SubSequence
1489 ATDS
1511 Average is not Fast Enough!
1512 Bound Found
1518 Hard to Believe, but True!
1522 Edge
1525 Largest Rectangle in a Histogram
1526 Drink, on Ice
1527 Bean Counting
1529 Maze Traversal
1540 AutoFish
1543 Dick and Jane
1554 Request for Proposal
1557 The Trip
1593 Triangles
1595 There's Treasure Everywhere!
1599 Box of Bricks
1610 Twenty Questions
1623 Blowing Fuses
1626 Programmer, Rank Thyself
1628 Magnificent Meatballs
1631 Tanning Salon
1637 HangOver
1648 Booklets
1649 Count on Canton
1669 In Danger
1674 Ball Toss
1685 Flow Layout
1688 Speed Limit
1696 No Brainer
1702 Team Rankings
1703 To and Fro
1710 Card Game Cheater
1716 Ride to School
1722 The Peanuts
1732 Orders
1741 Magic Trick
1744 Grandpa is Famous
1746 Filling Out the Team
1760 The jackpot
1766 Dog & Gopher
1768 Mine Sweeper
1773 Airline Hub
1776 Steps
1788 Death to Binary?
1796 Hanafuda Shuffle
1804 Leaky Cryptography
1813 Primary Arithmetic
1835 Paper Cutting
1848 Jolly Jumpers
1863 整数的排序
1866 猩猩点灯
1867 经理的烦恼
1871 整数的表示
1896 Average Speed
1900 A Multiplication Game
1903 Snow Clearing
1905 Stack 'em Up
1913 Intervals
1930 Forests
1933 Election
1951 Beavergnaw
1952 Power Strings
1957 Blocks
1960 Euclid's Game
1962 Above Average
1973 Guessing Game
1976 Calendar
1987 Recursive Function
2011 Simple Problem
2012 Sort and Merge
2017 Peter's smokes
2022 Mersenne Composite Numbers
2026 Specialized Four-Digit Numbers
2036 Polynomial Remains
2045 Ambiguous permutations
2071 Keep on Truckin'
2076 Series Determination
2082 Rock-Paper-Scissors Tournament
2089 4th point
2094 Common permutation
2098 Ultra-QuickSort
2100 Beat the Spread!
2102 Brownie Points I
2103 Magic Bitstrings
2105 Bungee Jumping
2107 Crashing Robots
2111 Electrical Outlets
2115 Playground
2116 Countable Numbers
2117 Long Division
2119 Acrophobic Cows
2122 Factstone Benchmark
2124 Tri Tiling
2125 Prerequisites?
2148 Computer Transformation
2154 Dropping tests
2155 Box walking
2174 Tornado!
2176 Pascal Library
2179 Where Are My Genes
2180 Computer DJ
2181 Take Your Vitamins
2186 Context-Free Clock
2191 Consecutive Digits in a Rational Number
2201 Sum of Cubes
2214 Parallelogram Counting
2221 Ohgas' Fortune
2235 Swamp Things
2243 Hospital's Crisis
2244 Get the Colors
2250 Great Travel Plan
2251 Not Only Shops I
2253 Choices
2260 GongZhu
2267 Alice and Bob
2277 Another Apples
2290 Laserbox
2296 Up the Stairs
2303 Wine trading in Gergovia
2304 Homogeneous squares
2305 Diophantus of Alexandria
2309 Knights of the Round Table
2312 Gaus in Elementary School
2314 Stamps
2322 Incomplete chess boards
2331 Sequence Sum Possibilities
2333 Best SMS to Type
2335 Dramatic Multiplications
2352 Ferry Loading IV
2353 Card Hands
2363 House Numbers
2364 Rotten Ropes
2386 The Cow Lineup
2401 Rinse
2410 Make it Manhattan
2411 Quick Change
2416 Visible Lattice Points
2424 Plaque Pack
2437 Quicksum
2450 Kickdown
2452 Tour Guide
2453 Nasty Hacks
2455 Card Trick
2463 Colorville
2476 Hurdles Race
2482 FlashGet
2485 Myacm Triangles
2487 Loansome Car Buyer
2489 Robot Motion
2490 Saruman's Army
2496 Tic-Tac-Toe
2497 Team Arrangement
2502 Chessboard Dance
2516 Citystar
2519 Fake coin

字符串处理:

1011 UNIX ls
1012 Decoding Task
1034 Simple Arithmetics
1081 Scramble Sort
1088 Do the Untwist
1089 Word Amalgamation
1095 Crosswords
1100 Simply Syntax
1101 TEX Quotes
1105 Egyptian Multiplication
1110 Excuses, Excuses!
1138 LC-Display
1191 ID Codes
1198 Permalex
1201 Ananagrams
1223 Hidden Password
1224 Crazy Tea Party
1251 Polynomial Showdown
1263 Crypto Columns
1307 Choose Your Words Carefully
1389 Election
1403 Palindromes
1423 The Hardest Problem Ever
1447 Compromise
1477 All in All
1515 Etaoin Shrdlu
1524 Genetic Code
1530 Compound Words
1536 Substitution Cypher
1538 File Fragmentation
1548 Crypt Kicker II
1656 Magic Trick
1670 Run Length Encoding
1684 Symmetric Order
1764 Soundex
1830 Bridge Hands
1853 WERTYU
1880 Zipf's Law
1882 All Integer Average
1898 Babelfish
1929 Hardwood Species
1944 方程题!!
1949 Hay Points
1979 Fractal
1989 The Most Frequent Word
1991 Happy 2005
1997 Multiplying Matrices
2046 Bullshit Bingo
2057 Complicated Translation
2066 Word Reversal
2149 Anagrammatic Distance
2151 Scrabble
2171 Rotate and Cut
2173 Interpreting Control Sequences
2189 Single Digit Adder
2202 Bold ASCII Lines
2206 Defining Moment
2212 It's My Derivative
2223 Numeral System
2297 Automatic Correction of Misspellings
2323 01000001
2332 Ancient Keyboard
2368 A DP Problem
2405 Digital Friends
2408 Decompression
2413 Shuffle'm Up
2422 Mahershalalhashbaz, Nebuchadnezzar, and Billy Bob Benjamin Go to the Regionals
2428 An Introduction
2438 Linear Pachinko
2439 Surprising Strings
2441 Frugal Search
2449 Java vs C++
2462 Easier Done Than Said?
2465 Instruens Fabulam
2475 Simple Calendar
2488 Automatic Editing
2511 Shift Cipher

贪心:

1003 Mixing Milk
1052 Radar Installation
1225 Supermarket
1314 Wooden Sticks
1349 Gone Fishing
1941 超市收银问题
2051 Expedition
2359 Yogurt factory
2403 Bowling

DP:

1005 Fast Food
1031 Piggy-Bank
1042 I-KeyBoard
1058 Number Triangles
1061 Fat Cat's cousin II
1090 The Staircases
1141 Dividing up
1158 History Grading
1192 Dollars
1215 Health Power
1227 Common Subsequence
1249 Optimal Array Multiplication Sequence
1252 The Doors
1277 Rhyme Schemes
1288 Bridging Signals
1316 Human Gene Functions
1388 The Brick Stops Here
1402 整数划分问题
1438 The Tower of Babylon
1485 A Good Helper
1516 Fiber Network
1562 Tiling Up Blocks
1579 Chopsticks
1590 Pearls
1598 Always On the Run
1603 Brackets Sequence
1672 Huffman's Greed
1680 One Person 'The Price is Right'
1697 Alphacode
1711 Investment
1728 Color a Tree
1733 Phone numbers
1754 To Europe! To Europe!
1755 Test the Rods
1757 Y2K Accounting Bug
1770 Old Wine Into New Bottles
1780 Decoding Morse Sequences
1795 Ferry Loading
1852 Tight Words
1912 Density map
1936 Brackets
1942 OS进程调度
1965 Ferry Loading II
1977 Recaman's Sequence
2000 Maximum Submatrix
2014 Tiling
2019 The Top Shelf
2023 Zipper
2044 Supermarket
2056 Bookshelf
2067 Adding 1s, 2s, and 3s
2072 Blurred Vision
2074 Exact Change Only
2085 Wavio Sequence
2091 Chess
2133 Tourist
2139 Spiderman's workout
2156 Colored stones
2177 ICPC Strikes Again
2188 WordStack
2195 Pascal's Travels
2196 Job Scheduling by Open Bidding
2252 The Priest
2257 Sorting
2346 Atomic Car Race
2372 Recoup Traveling Expenses
2376 Chinese Word Segmentation
2406 The Bavarian Beer Party
2407 Evacuation
2412 Triangular Sums
2414     Push Button Lock
2457 Whac-a-Mole
2458 Random Walking
2459 Honeycomb Walk
2468 Most Leg
2473 Fish Can Fly
2480 The best travel design
2481 Travel
2494 Spam
2503 Bribing FIPA
2506 Print Words in Lines
2517 Escape

图论:

1007 SPF
1021   Housing Complexes
1030 Labyrinth
1033 Play on Words
1045 Transportation
1056 Machine Schedule
1068 King
1098 NetWork
1115 Channel Allocation
1130 Galactic Import
1131 The Postal Worker Rings Once
1185 Bandwidth
1211 HIT's Powerstation
1236 Domino Effect
1266 Phone Home
1335 What's In A Name?
1336 Sorting It All Out
1352 Mystery
1426 Door Man
1437 Arbitrage
1450 Frogger
1460 Heavy Cargo
1464 From Dusk Till Dawn
1487 Fleet Commander
1494 Hinge Node Problem
1565 The Geodetic Set Problem
1614 Communication Planning for Phobos
1632 Jungle Roads
1653 Heavy Transportation
1708 Taxi Cab Scheme
1720 Pollution
1735 Sightseeing trip
1751 Tangled in Cables
1763 Fire Station
1811 Freckles
1833 Truck History
1851 Gopher II
1950 Jogging Trails
2021 Colored Sticks
2025 Going Home
2047 106 miles to Chicago
2062 Help the Hurricane Victims
2078 Window Pains
2123 Walk Through the Forest
2298 Basic wall maze
2319 A Bug's Life
2442 Go Go Gorelians
2479 Gold Transportation
2493 Robot
2500 Party at Hali-Bula
2501 Against Mammoths
2507 The Bug Sensor Problem
2514 Perfect Service
2518 Holiday Gifts

计算几何:

1019 Grandpa's Other Estate
1027 Equipment Box
1032 Lifting the Stone
1094 Packets
1096 Intervals
1099 Lining Up
1167 Pipe Fitters
1188 Orchard Trees
1212 Area of Overlap
1248 Intersecting Lines
1387 Billiard
1517 Global Roaming
1551 Polylops
1633 Transmitters
1655 Yeehaa!
1707 Watchdog
1721 Area in Triangle
2054 Stacking Cylinders
2127 Ball bearings
2183 Extrusion
2258 Rotating
2328 Stacking Cylinders
2330 Model Rocket Height

数学:

1008 How many N
1013 Just The Facts
1014 Niven Numbers
1015 Nearly prime numbers
1016 Joseph's problem I
1017 Joseph's problem II
1036 Complete the sequence!
1039 Factorial
1062 数列极差问题
1117 Octal Fractions
1126 Smith Numbers
1131 Basically Speaking
1135 Data Bugs
1176 Roman Roulette
1196 Power Crisis
1205 Factors and Factorials
1241 Factorial Frequencies
1281 Lagrange's Four-Square Theorem
1302 Sum of Factorials
1348 Biorhythms
1356 Prime Judge
1357 Calling Extraterrestrial Intelligence Again
1367 A Stone Game
1444 Humble Numbers
1446 Binomial Showdown
1458 France '98
1459 Goldbach's Conjecture
1483 Paths on a Grid
1496 World Cup Noise
1500 Strange Towers of Hanoi
1519 Assistance Required
1528 Factoring Large Numbers
1533 Fibonacci Numbers
1549 Watching Watches
1552 Prime Distance
1560 Factovisors
1583 Guess the Number
1584 Hanoi Tower Troubles Again!
1587 Hansel and Grethel
1713 SETI
1717 Fourier's Lines
1737 Block Town
1761 Number Sequence
1769 Choose and Divide
1802 The Balance
1842 Raising Modulo Numbers
1864 Fibonacci
1870 Race
1881 Ones
1888 The Counting Problem
1893 Tian Ji -- The Horse Racing
1902 Pairsumonious Numbers
1935 Triangle
1945 孔明棋
1953 Relatives
1995 Venn Diagram
2015 Crossed ladders
2016 Conic Distance
2029 Rate of Return
2060 Fibonacci Problem Again
2065 Fibonacci Number
2079 So you want to be a 2^n-aire?
2138 Jackpot
2153 Nim
2158 Do it!
2204 Fibonacci Numbers
2293 Reduced ID Numbers
2324 The Bank of Kalii
2342 Sum of Consecutive Prime Numbers
2356 How many 0's?
2371 9-18
2397 Semi-prime H-numbers
2433 Full of Energy
2436 I love you
2443 Root of the Problem
2466 Who Can Go to America
2467 Z-curve
2477 String's Puzzle
2491 Fibonacci
2492 Football
2498 Barbara Bennett's Wild Numbers
2515 Number tricks

搜索、二分枚举:

1018 Multiple
1022 Spacecraft Malfunction
1044 Transportation
1048 Cipher
1049 Sticks
1050 Moving Object Recognition
1066 Substrings
1073 Append
1075 The Castle
1083 N-Credible Mazes
1085 Finding Rectangles
1086 Don't Get Rooked
1097 Robot
1102 Jack Straws
1103 Cat and Mouse
1113 Stockbroker Grapevine
1116 Alien Security
1134 Maze
1136 Robbery
1140 The Game
1170 Following Orders
1273 Peg Game
1293 Prison Rearrangement
1372 方程的解数
1399 Hang or not to hang
1419 Deeper Blue
1422 Asteroids!
1440 Knight Moves
1448 Dungeon Master
1455 The Settlers of Catan
1488 TMD
1505 Push!!
1574 Gift?!
1600 Island of Logic
1601 Cable Master
1619 The Die Is Cast
1620 It's not a Bug, It's a Feature!
1629 Safecracker
1693 Choose Your Own Adventure
1723 Finding Nemo
1740 Long Night of Museums
1797 Red and Black
1803 Make a Sequence
1877 No Tipping
1908 Party Lamps
1961 Arctic Network
2035 Center of Symmetry
2092 Gopher and hawks
2144 Sudoku
2159 The mysterious X network
2190 Connect
2306 Tudoku
2315 A Knight's Journey
2318 Scavenger Hunt
2377 Triumvirate Canyon Interlocution
2391 Aggressive cows
2400 Tautology
2434 Going to know him
2456 Traveling Salesman
2461 The Triangle Game
2472 IR-Lab
2483 Accelerator
2484 Find the Winning Move
2486 Exchange Rates
2510 Route Planning

数据结构:

1065 Entropy
1067 Rails
1152 The Blocks Problem
1159 Tree Summing
1452 Tree Recovery
1456 Team Queue
1564 The Suspects
1673 Binary Search Heap Construction
1725 Argus
1819 郁闷的出纳员
1978 Terrible Sets
2033 Ubiquitous Religions
2037 Mayor's posters
2120 Is It A Tree?
2385 Cube Stacking

2464 Falling Leaves



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