list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
5830 Alternating Permutations   1 54 39.39
34
34
5732 Paradox   42 1219 27.88
16
19
5725 123 Sequence   2 120 23.56
1
1
5703 Primes of Lambda   2 22 26.97
42
42
5699 The last digit re-visited   39 7443 31.68
9
9
5673 Fractions on Tree ( reloaded !)   2 244 38.22
26
34
5672 Captain Selection   4 38.89
5652 Snow White and the N dwarfs   31 881 21.80
21
31
5649 Divide Polygon   3 31 21.43
9
34
5640 Fractions on Tree   6 918 61.77
14
21
5638 Mobile Service Hard   1 82 22.84
50
50
5637 LL and ErBao   5 50.88
5609 Knight Moves   6 98 40.23
9
20
5566 Math with Bases   15 11.28
5542 Counting pairs   4 129 26.33
39
36
5541 Sequoiadendron   1 61 43.89
17
17
5531 Kutevi Hard   87 42.67
5530 Math with Bases (Easy)   2 63 24.94
26
9
5523 Highway Patrol   16 50.00
5522 Buy Your House   12 35.90
5511 Heavy Sequences   80 18.08
34
34
5469 Houses   42 26.72
34
26
5468 Going to school   8 318 35.85
15
34
5467 Finding password   6 182 17.08
26
34
5466 Electronic queue   3 156 36.89
12
17
5465 Deliver pizza   5 404 22.82
21
15
5464 Counting triangles   3 202 28.72
6
28
5463 Bird or not bird   2 115 38.84
1
17
5462 Art Plagiarism   9 22.22
5453 Air Strike   2 175 23.63
17
17
5452 Hop Do not Walk   2 144 35.29
17
17
5451 Not So Flat After All   9 1116 42.57
11
10
5450 Tiles of Tetris, Not!   15 3153 35.96
4
5
5449 Seinfeld   188 9517 40.07
8
11
5446 Fishing Net   149 31.68
5373 Four Mines   14 8.24
5317 Tetravex Puzzle   1 279 46.06
17
9
5301 Query Problem   6 663 37.27
13
21
5300 Mexican Standoff   21 23.19
5298 Interval Challenge   4 135 16.52
24
27
5296 Air Combat   -1 64 14.85
34
5295 Adjacent Bit Counts   86 3585 65.59
14
18
5294 Recurrence   2 255 14.32
28
17
5271 A Coin Game   4 511 30.73
21
30
5240 Area of a Garden   5 1688 47.03
4
9
5197 Differential Diagnosis   1 57 23.72
5196 Monotonous numbers   6 609 47.80
4
34
5182 Double Sorting   12 8.92
5163 Tower of Vientiane   92 40.20
5161 Factorial vs Power   14 1114 26.17
13
15

Most popular tags