list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
5160 Jinyuetuan Puzzle   45 37.70
5161 Factorial vs Power   14 1140 25.97
13
15
5163 Tower of Vientiane   105 34.94
5182 Double Sorting   15 8.70
5196 Monotonous numbers   6 635 48.16
4
34
5197 Differential Diagnosis   1 65 24.32
5240 Area of a Garden   5 1702 47.20
4
9
5271 A Coin Game   4 554 31.99
21
30
5294 Recurrence   2 262 14.44
28
17
5295 Adjacent Bit Counts   86 3776 63.98
14
18
5296 Air Combat   -1 71 15.71
34
5298 Interval Challenge   4 143 16.92
24
27
5300 Mexican Standoff   26 24.19
5301 Query Problem   7 695 37.33
16
22
5317 Tetravex Puzzle   2 284 46.25
23
6
5373 Four Mines   14 6.25
5446 Fishing Net   176 31.96
5449 Seinfeld   189 9560 40.07
8
11
5450 Tiles of Tetris, Not!   15 3205 36.04
4
5
5451 Not So Flat After All   9 1128 42.94
11
10
5452 Hop Do not Walk   2 148 35.23
17
17
5453 Air Strike   2 178 23.78
17
17
5462 Art Plagiarism   13 21.84
5463 Bird or not bird   2 119 38.48
1
17
5464 Counting triangles   3 213 29.16
6
28
5465 Deliver pizza   5 408 22.98
21
15
5466 Electronic queue   5 166 38.11
13
21
5467 Finding password   6 187 17.06
26
34
5468 Going to school   9 330 36.17
17
34
5469 Houses   1 46 25.56
34
26
5511 Heavy Sequences   -1 84 18.41
34
34
5522 Buy Your House   17 39.62
5523 Highway Patrol   19 43.01
5530 Math with Bases (Easy)   2 67 24.73
26
9
5531 Kutevi Hard   90 43.40
5541 Sequoiadendron   1 66 44.25
17
17
5542 Counting pairs   4 135 26.54
39
36
5566 Math with Bases   15 10.78
5609 Knight Moves   6 107 40.69
9
20
5637 LL and ErBao   5 41.43
5638 Mobile Service Hard   1 91 22.09
50
50
5640 Fractions on Tree   6 930 61.30
14
21
5649 Divide Polygon   3 48 22.95
9
34
5652 Snow White and the N dwarfs   32 1031 18.12
21
31
5672 Captain Selection   -1 10 26.42
5673 Fractions on Tree ( reloaded !)   2 248 38.33
26
34
5699 The last digit re-visited   39 7471 31.71
9
9
5703 Primes of Lambda   2 25 26.79
42
42
5725 123 Sequence   2 124 24.09
1
1
5732 Paradox   43 1241 27.87
16
19

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