Problem Set

ID Title Ratio
1001 A+B
(11730 / 24422) 48.03%
1002 A+B+C
(6628 / 32776) 20.22%
1003 Mixing Milk
(4026 / 9561) 42.11%
1004 Prime Palindromes
(4882 / 22254) 21.94%
1005 Fast Food
(1198 / 3954) 30.30%
1006 Weird Clock
(2156 / 10709) 20.13%
1007 SPF
(548 / 1820) 30.11%
1008 How many N
(1875 / 8087) 23.19%
1009 Fat Cat
(750 / 2405) 31.19%
1010 The Angle
(2612 / 10216) 25.57%
1011 UNIX ls
(591 / 3735) 15.82%
1012 Decoding Task
(424 / 1651) 25.68%
1013 Just The Facts
(543 / 1652) 32.87%
1014 Niven Numbers
(1017 / 5609) 18.13%
1015 Nearly prime numbers
(937 / 5339) 17.55%
1016 Joseph's problem I
(600 / 1895) 31.66%
1017 Joseph's problem II
(565 / 1146) 49.30%
1018 Multiple
(405 / 1549) 26.15%
1019 Grandpa's Other Estate
(341 / 781) 43.66%
1020 Afshung Pizza Delivery
(82 / 313) 26.20%
1021 Housing Complexes
(175 / 361) 48.48%
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
(324 / 655) 49.47%
1026 Run Away
(90 / 259) 34.75%
1027 Equipment Box
(282 / 820) 34.39%
1028 Secret Code
(108 / 258) 41.86%
1029 The Proper Key
(15 / 58) 25.86%
1030 Labyrinth
(423 / 981) 43.12%
1031 Piggy-Bank
(735 / 1643) 44.74%
1032 Lifting the Stone
(329 / 744) 44.22%
1033 Play on Words
(297 / 995) 29.85%
1034 Simple Arithmetics
(134 / 482) 27.80%
1035 The Bulk
(48 / 120) 40.00%
1036 Complete the sequence!
(230 / 447) 51.45%
1037 Direct Visibility
(334 / 836) 39.95%
1038 Complicated Expressions
(96 / 204) 47.06%
1039 Factorial
(1010 / 2218) 45.54%
1040 The Game of Master-Mind
(8 / 27) 29.63%
1041 HotLine
(43 / 65) 66.15%
1042 I-KeyBoard
(234 / 572) 40.91%
1043 Maya Calendar
(514 / 1433) 35.87%
1044 Transportation
(188 / 345) 54.49%
1045 John's trip
(183 / 540) 33.89%
1046 Pipe
(111 / 207) 53.62%
1047 Department
(7 / 30) 23.33%
1048 Cipher
(202 / 581) 34.77%
1049 Sticks
(477 / 1549) 30.79%
1050 Moving Object Recognition
(133 / 306) 43.46%
1051 Random Walk
(8 / 30) 26.67%
1052 Radar Installation
(404 / 1329) 30.40%
1053 Holedox Moving
(147 / 347) 42.36%
1054 Game Prediction
(627 / 1452) 43.18%
1055 Chocolate
(145 / 306) 47.39%
1056 Machine Schedule
(259 / 475) 54.53%
1057 Mileage Bank
(1169 / 2922) 40.01%
1058 Number Triangles
(1072 / 2772) 38.67%
1059 Shaping Regions
(49 / 214) 22.90%
1060 e-present for wolfshow
(1 / 25) 4.00%
1061 Fat Cat's cousin II
(296 / 664) 44.58%
1062 数列极差问题
(1001 / 3716) 26.94%
1063 Tree I
(55 / 154) 35.71%
1064 Tree II
(135 / 206) 65.53%
1065 Entropy
(199 / 442) 45.02%
1066 Substrings
(216 / 615) 35.12%
1067 Rails
(745 / 1693) 44.00%
1068 King
(155 / 266) 58.27%
1069 Prime Land
(202 / 392) 51.53%
1070 Word
(64 / 135) 47.41%
1071 Time
(69 / 339) 20.35%
1072 Puzzle
(63 / 127) 49.61%
1073 Append
(62 / 93) 66.67%
1074 Gossiping
(55 / 85) 64.71%
1075 The Castle
(157 / 538) 29.18%
1076 Ordered Fractions
(505 / 1537) 32.86%
1077 Synchronous Design
(39 / 58) 67.24%
1078 u Calculate e
(1667 / 4145) 40.22%
1079 Problem Bee
(59 / 99) 59.60%
1080 Digital Roots
(1407 / 5320) 26.45%
1081 Scramble Sort
(312 / 663) 47.06%
1082 A Well-Formed Problem
(37 / 49) 75.51%
1083 N-Credible Mazes
(106 / 187) 56.68%
1084 Booklet Printing
(427 / 926) 46.11%
1085 Finding Rectangles
(136 / 288) 47.22%
1086 Don't Get Rooked
(194 / 277) 70.04%
1087 Self Numbers
(646 / 1512) 42.72%
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 / 79) 62.03%
1092 Forcal
(48 / 72) 66.67%
1093 L-system
(32 / 73) 43.84%
1094 Packets
(330 / 897) 36.79%
1095 Crosswords
(111 / 338) 32.84%
1096 Intervals
(146 / 389) 37.53%
1097 Robot
(128 / 278) 46.04%
1098 NetWork
(306 / 608) 50.33%
1099 Lining Up
(376 / 1307) 28.77%
1100 Simply Syntax
(491 / 1160) 42.33%