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Problems

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  ID Title Submit Solved
  1001 A + B Problem 18696 9031
  1002 A + B Problem (Big integer version) 16526 3914
  1003 A * B Problem (Big integer version) 6929 2523
  1004 A / B Problem (Big integer version) 3725 1143
  1005 Move cards 5159 1525
  1006 The Hardest Problem Ever 3975 1553
  1007 Rubik's Cube Solver 375 117
  1008 Climbing Trees 397 102
  1009 Dollars 2554 776
  1010 Mutant Flatworld Explorers 1168 327
  1011 The Skyline Problem 776 296
  1012 Fermat vs_ Pythagoras 349 225
  1013 The Cat in the Hat 726 208
  1014 Maximum Sum 1678 892
  1015 History Grading 375 183
  1016 Tree Summing 423 128
  1017 Power of Cryptography 1182 556
  1018 Simulation Wizardry 172 74
  1019 Unidirectional TSP 613 261
  1020 Triangle 941 251
  1021 Great Equipment 103 47
  1022 Uniform Generator 1115 484
  1023 Prime Cuts 1759 577
  1024 Word Index 618 331
  1025 Integer Inquiry 943 662
  1026 Eeny Meeny Moo 519 383
  1027 Lotto 974 574
  1028 Matrix Chain Multiplication 233 149
  1029 Humble Numbers 1124 481
  1030 Sum It Up 712 289
  1031 Transportation 185 80
  1032 Roman Numerals 66 36
  1033 The Sultan's Successors 242 122
  1034 Ananagrams 178 104
  1035 Power Crisis 556 280
  1036 The Dole Queue 450 199
  1037 ``Accordian'' Patience 71 43
  1038 Trees on the level 297 71
  1039 Greedy Gift Givers 476 164
  1040 Maya Calendar 498 192
  1041 Pipe 106 59
  1042 Department 25 6
  1043 Joseph 890 447
  1044 Cipher 216 66
  1045 Sticks 1146 347
  1046 Tin Cutter 74 23
  1047 FORCAL 68 13
  1048 L-system 13 8
  1049 Packets 801 280
  1050 Crosswords (II) 39 21
  1051 palindromes 958 292
  1052 MASH 161 109
  1053 Postscript 29 13
  1054 Radar Scopes 35 9
  1055 Message Routing 16 8
  1056 Gears on a Board 17 3
  1057 Excuses, Excuses! 302 140
  1058 Centipede Collisions 91 18
  1059 Pi 1068 499
  1060 Up and Down Sequences 63 41
  1061 Machined Surfaces 149 79
  1062 LED Test 41 20
  1063 Molecules 23 15
  1064 Matching Meetings 6 2
  1065 Supercomputer Selection, The Sequel 2 2
  1066 Polygonal Puzzle 12 7
  1067 Word-Search Wonder 263 130
  1068 MPI Maelstrom 134 76
  1069 Brackets 330 138
  1070 Arbitrage (II) 435 137
  1071 The Tower of Babylon 384 197
  1072 The Circumference of the Circle 624 390
  1073 Knight Moves 668 357
  1074 BlueEyes and Apples (I) 2164 801
  1075 BlueEyes and Apples (II) 1191 512
  1076 BlueEyes' Problem 1483 458
  1077 BlueEyes' Google 866 350
  1078 BlueEyes' Schedule 2114 825
  1079 BlueEyes' Running 974 350
  1080 生化危机3 2311 756
  1081 SARS 830 324
  1082 不甘心的皇后 777 418
  1083 FatMouse的游戏 413 165
  1084 滑雪比赛 1385 614
  1085 SCU 2260 852
  1086 袁源与苹果（三） 172 29
  1087 战略游戏 756 280
  1088 考古学家的困境 1479 923
  1089 FatMouse的奶酪 1973 1120
  1090 Dick and Jane 1193 393
  1091 指环王 353 169
  1092 欧几里得算法 1116 549
  1093 伊拉克 285 134
  1094 临界波 640 187
  1095 运送物资 422 112
  1096 Euro Efficiency 148 64
  1097 Markov Trains 4 3
  1098 Floors 42 18
  1099 Huffman Tree 18 9