Problem Set

ID Title Ratio
1001 A+B
(11892 / 24737) 48.07%
1002 A+B+C
(6683 / 33109) 20.18%
1003 Mixing Milk
(4059 / 9651) 42.06%
1004 Prime Palindromes
(4897 / 22392) 21.87%
1005 Fast Food
(1246 / 4079) 30.55%
1006 Weird Clock
(2170 / 10755) 20.18%
1007 SPF
(554 / 1855) 29.87%
1008 How many N
(1884 / 8113) 23.22%
1009 Fat Cat
(758 / 2440) 31.07%
1010 The Angle
(2616 / 10230) 25.57%
1011 UNIX ls
(593 / 3759) 15.78%
1012 Decoding Task
(426 / 1653) 25.77%
1013 Just The Facts
(543 / 1666) 32.59%
1014 Niven Numbers
(1017 / 5612) 18.12%
1015 Nearly prime numbers
(937 / 5339) 17.55%
1016 Joseph's problem I
(600 / 1899) 31.60%
1017 Joseph's problem II
(568 / 1153) 49.26%
1018 Multiple
(405 / 1553) 26.08%
1019 Grandpa's Other Estate
(342 / 783) 43.68%
1020 Afshung Pizza Delivery
(82 / 314) 26.11%
1021 Housing Complexes
(175 / 362) 48.34%
1022 Spacecraft Malfunction
(180 / 458) 39.30%
1023 Blue x Red = Bang
(12 / 86) 13.95%
1024 JaWs
(54 / 120) 45.00%
1025 Skew Binary
(327 / 660) 49.55%
1026 Run Away
(91 / 262) 34.73%
1027 Equipment Box
(283 / 821) 34.47%
1028 Secret Code
(108 / 262) 41.22%
1029 The Proper Key
(15 / 58) 25.86%
1030 Labyrinth
(424 / 982) 43.18%
1031 Piggy-Bank
(740 / 1649) 44.88%
1032 Lifting the Stone
(330 / 746) 44.24%
1033 Play on Words
(297 / 999) 29.73%
1034 Simple Arithmetics
(134 / 482) 27.80%
1035 The Bulk
(48 / 134) 35.82%
1036 Complete the sequence!
(232 / 451) 51.44%
1037 Direct Visibility
(334 / 836) 39.95%
1038 Complicated Expressions
(96 / 204) 47.06%
1039 Factorial
(1012 / 2220) 45.59%
1040 The Game of Master-Mind
(9 / 28) 32.14%
1041 HotLine
(43 / 65) 66.15%
1042 I-KeyBoard
(245 / 598) 40.97%
1043 Maya Calendar
(516 / 1442) 35.78%
1044 Transportation
(190 / 347) 54.76%
1045 John's trip
(183 / 540) 33.89%
1046 Pipe
(113 / 210) 53.81%
1047 Department
(7 / 30) 23.33%
1048 Cipher
(202 / 581) 34.77%
1049 Sticks
(492 / 1589) 30.96%
1050 Moving Object Recognition
(133 / 306) 43.46%
1051 Random Walk
(8 / 30) 26.67%
1052 Radar Installation
(409 / 1336) 30.61%
1053 Holedox Moving
(148 / 350) 42.29%
1054 Game Prediction
(627 / 1452) 43.18%
1055 Chocolate
(145 / 306) 47.39%
1056 Machine Schedule
(262 / 478) 54.81%
1057 Mileage Bank
(1171 / 2933) 39.92%
1058 Number Triangles
(1075 / 2782) 38.64%
1059 Shaping Regions
(49 / 214) 22.90%
1060 e-present for wolfshow
(1 / 25) 4.00%
1061 Fat Cat's cousin II
(296 / 666) 44.44%
1062 数列极差问题
(1005 / 3765) 26.69%
1063 Tree I
(55 / 154) 35.71%
1064 Tree II
(135 / 207) 65.22%
1065 Entropy
(201 / 446) 45.07%
1066 Substrings
(216 / 615) 35.12%
1067 Rails
(746 / 1695) 44.01%
1068 King
(156 / 267) 58.43%
1069 Prime Land
(203 / 395) 51.39%
1070 Word
(65 / 137) 47.45%
1071 Time
(69 / 342) 20.18%
1072 Puzzle
(63 / 127) 49.61%
1073 Append
(62 / 95) 65.26%
1074 Gossiping
(55 / 85) 64.71%
1075 The Castle
(157 / 539) 29.13%
1076 Ordered Fractions
(512 / 1546) 33.12%
1077 Synchronous Design
(39 / 58) 67.24%
1078 u Calculate e
(1667 / 4145) 40.22%
1079 Problem Bee
(60 / 101) 59.41%
1080 Digital Roots
(1408 / 5321) 26.46%
1081 Scramble Sort
(312 / 663) 47.06%
1082 A Well-Formed Problem
(38 / 50) 76.00%
1083 N-Credible Mazes
(107 / 188) 56.91%
1084 Booklet Printing
(427 / 927) 46.06%
1085 Finding Rectangles
(136 / 288) 47.22%
1086 Don't Get Rooked
(195 / 280) 69.64%
1087 Self Numbers
(647 / 1513) 42.76%
1088 Do the Untwist
(297 / 454) 65.42%
1089 Word Amalgamation
(385 / 753) 51.13%
1090 The Staircases
(627 / 1487) 42.17%
1091 Tin Cutter
(49 / 86) 56.98%
1092 Forcal
(48 / 72) 66.67%
1093 L-system
(32 / 73) 43.84%
1094 Packets
(332 / 899) 36.93%
1095 Crosswords
(111 / 338) 32.84%
1096 Intervals
(147 / 391) 37.60%
1097 Robot
(128 / 278) 46.04%
1098 NetWork
(308 / 611) 50.41%
1099 Lining Up
(376 / 1307) 28.77%
1100 Simply Syntax
(491 / 1161) 42.29%