list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
5163 Tower of Vientiane   92 40.20
5182 Double Sorting   12 8.92
5196 Monotonous numbers   6 609 47.80
4
34
5197 Differential Diagnosis   1 57 23.72
5240 Area of a Garden   5 1686 47.05
4
9
5271 A Coin Game   4 503 30.49
21
30
5294 Recurrence   2 255 14.32
28
17
5295 Adjacent Bit Counts   86 3547 65.91
14
18
5296 Air Combat   -1 64 14.85
34
5298 Interval Challenge   4 135 16.52
24
27
5300 Mexican Standoff   21 23.19
5301 Query Problem   6 660 37.22
13
21
5317 Tetravex Puzzle   1 278 45.99
17
9
5373 Four Mines   14 8.24
5446 Fishing Net   148 31.58
5449 Seinfeld   188 9506 40.07
8
11
5450 Tiles of Tetris, Not!   15 3149 35.94
4
5
5451 Not So Flat After All   9 1116 42.57
11
10
5452 Hop Do not Walk   2 144 35.29
17
17
5453 Air Strike   2 175 23.63
17
17
5462 Art Plagiarism   9 22.22
5463 Bird or not bird   2 115 38.84
1
17
5464 Counting triangles   3 202 28.75
6
28
5465 Deliver pizza   5 403 22.81
21
15
5466 Electronic queue   3 156 36.89
12
17
5467 Finding password   6 182 17.08
26
34
5468 Going to school   8 314 35.88
15
34
5469 Houses   42 26.72
34
26
5511 Heavy Sequences   80 18.08
34
34
5522 Buy Your House   12 35.90
5523 Highway Patrol   16 50.00
5530 Math with Bases (Easy)   2 63 24.94
26
9
5531 Kutevi Hard   86 42.48
5541 Sequoiadendron   1 61 43.89
17
17
5542 Counting pairs   4 129 26.33
39
36
5566 Math with Bases   14 10.82
5609 Knight Moves   6 98 40.36
9
20
5637 LL and ErBao   5 50.88
5638 Mobile Service Hard   1 81 22.75
50
50
5640 Fractions on Tree   6 918 61.77
14
21
5649 Divide Polygon   3 31 21.43
9
34
5652 Snow White and the N dwarfs   31 851 21.45
21
31
5672 Captain Selection   2 18.18
5673 Fractions on Tree ( reloaded !)   2 244 38.22
26
34
5699 The last digit re-visited   39 7438 31.67
9
9
5703 Primes of Lambda   1 22 29.14
34
34
5725 123 Sequence   2 120 23.56
1
1
5732 Paradox   42 1219 27.88
16
19
5830 Alternating Permutations   1 54 39.39
34
34
5831 Permutation Jumping   135 58.71

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