list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3007 Oil Company   3 178 25.08
23
28
3008 Finding the Top RPS Player   1 183 65.90
23
28
3253 Electronic Document Security   3 156 61.07
23
6
3484 Crossbits   3 99 15.25
23
15
3752 JEDNAKOST   12 601 18.45
23
21
4197 Dominoes   4 125 23.08
23
23
4227 "Shortest" pair of paths   3 214 41.11
23
17
4413 Gem   3 99 40.00
23
12
4523 Binomial Coefficients   210 41.58
23
12
4839 Ant   3 194 38.89
23
28
5317 Tetravex Puzzle   2 284 46.25
23
6
6665 Easy Longest Common Substring   2 149 23.11
23
17
7250 Blocks for kids   2 102 40.56
23
23
7322 Prime Pattern   1 97 36.16
23
17
7753 Happy Numbers II   3 651 15.95
23
17
8263 Big Pyramid   3 51 62.92
23
23
8277 Number of Prime Strings   3 112 19.95
23
28
9138 Pyramid Sums 2   2 114 33.61
23
34
9255 Publication   3 42 60.75
23
17
9547 Counting d-pairs   2 138 30.45
23
28
10405 Shooting the balloons!   11 347 36.02
23
27
10606 Balanced Numbers   9 647 29.11
23
17
11579 Two Famous Companies   3 235 22.02
23
28
11789 Aliens at the subway   2 78 18.13
23
23
12318 My Reaction when there is no internet connection   32 25.93
23
12
12352 HNumbers   2 202 27.56
23
42
13044 Dyslexic Gollum   3 124 29.11
23
28
13048 Escape from the Mines   2 69 24.27
23
23
13106 KOSARE   3 387 50.65
23
39
13925 ZEROES IN RANGE V2   2 244 37.97
23
17
14122 Inverse of Recurrence Problem With a Square Root   3 61 49.14
23
45
14823 Advanced Battleships   5 52 13.75
23
23
14862 Union Laser   3 31 47.34
23
17
15143 play with prime numbers (I)   5 35 17.68
23
23
15243 Primos Quest   1 175 38.49
23
23
15551 Do You Even Lift   2 24 36.86
23
28
15557 Partition the sticks   4 110 34.84
23
17
15914 Update Sub-Matrix & Query Sub-Matrix   2 96 35.79
23
28
17406 Cheating a Boolean Tree   5 126 35.34
23
15
17660 The Bridge to Home   5 122 36.19
23
34
18153 Robert Langdon & The Rule of Three   3 41 36.36
23
34
18458 Very Friends 2   4 40 19.45
23
23
18468 A Pleasant Stroll   10 138 35.42
23
19
19146 Glorious Gamblers   -1 141 55.52
23
26
19152 Digo Goes Training   1 240 46.18
23
17
21353 Avantgarde and Doughnut   5 23 44.87
23
31
21861 I Love Strings   3 57 18.37
23
23
21966 Ricochet Robots   3 26 50.00
23
12
22270 Periodic function, trip 2   3 38 44.65
23
28
23875 Another Version of Inversion   7 71 32.13
23
23

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