list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
5161 Factorial vs Power   14 1116 26.16
13
15
5163 Tower of Vientiane   92 40.20
5182 Double Sorting   12 8.88
5196 Monotonous numbers   6 610 47.88
4
34
5197 Differential Diagnosis   1 57 23.72
5240 Area of a Garden   5 1691 47.05
4
9
5271 A Coin Game   4 545 31.73
21
30
5294 Recurrence   2 255 14.32
28
17
5295 Adjacent Bit Counts   86 3632 64.99
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   7 678 37.38
16
22
5317 Tetravex Puzzle   1 279 46.06
17
9
5373 Four Mines   14 8.10
5446 Fishing Net   160 30.83
5449 Seinfeld   188 9524 40.06
8
11
5450 Tiles of Tetris, Not!   15 3174 35.96
4
5
5451 Not So Flat After All   9 1123 42.64
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   3 204 28.86
6
28
5465 Deliver pizza   5 405 22.85
21
15
5466 Electronic queue   4 157 37.04
13
21
5467 Finding password   6 180 16.86
26
34
5468 Going to school   8 322 35.92
15
34
5469 Houses   42 26.72
34
26
5511 Heavy Sequences   -1 82 18.23
34
34
5522 Buy Your House   12 35.90
5523 Highway Patrol   16 50.00
5530 Math with Bases (Easy)   2 65 23.92
26
9
5531 Kutevi Hard   87 42.67
5541 Sequoiadendron   1 62 45.22
17
17
5542 Counting pairs   4 131 26.46
39
36
5566 Math with Bases   15 11.28
5609 Knight Moves   6 99 40.26
9
20
5637 LL and ErBao   5 50.88
5638 Mobile Service Hard   1 82 22.57
50
50
5640 Fractions on Tree   6 925 61.26
14
21
5649 Divide Polygon   3 33 21.14
9
34
5652 Snow White and the N dwarfs   31 932 22.37
21
31
5672 Captain Selection   4 38.89
5673 Fractions on Tree ( reloaded !)   2 244 38.22
26
34
5699 The last digit re-visited   39 7450 31.69
9
9
5703 Primes of Lambda   2 22 26.97
42
42
5725 123 Sequence   2 120 23.56
1
1
5732 Paradox   42 1223 27.93
16
19
5830 Alternating Permutations   1 57 38.46
34
34

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