list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
15980 Ascending Fibonacci Numbers   23 802 17.27
17
13
16245 Living with Courage   19 565 37.37
10
13
16409 Lopov   4 300 28.23
9
13
16758 Divisible by 6 and 9   -1 122 37.97
21
13
17002 Psycho Function   3 73 36.99
17
13
19142 BSTRING   4 130 32.69
17
13
19795 Psycho34 (easy)   6 54 22.20
30
13
20752 LAZY FRIENDS   3 33 52.81
17
13
21963 Flowery Trails   3 38 45.87
17
13
23507 Retrovirus   7 89 36.36
15
13
23878 Finding GP   3 25 51.75
17
13
25728 One of the Simpsons symbols   2 276 66.52
5
13
25782 Fury Road   6 87 44.21
17
13
26958 Spaceship   1 30 41.28
17
13
28287 Mayonnaise Arrow   3 31 10.18
26
13
28302 Ada and Plus   6 151 44.16
13
13
28457 Correlations   5 91 29.44
9
13
32683 Ada and Kohlrabi   5 67 18.28
30
13
34260 Signpost reading   8 28 22.62
21
13
34864 Large Sum   7 193 17.59
13
13
34908 Cheesy line   6 60 34.10
5
13
35276 Smallest on the Stack   20 876 15.19
10
13
35281 Noel and His Reindeer   5 25 41.46
21
13
36712 Trailing digits   7 61 12.37
13
13
9805 Be Awesome As Barney Stinson   43 1810 68.25
12
13
526 Divisors   37 1681 43.58
14
13
14956 Submerging Islands   104 4393 39.62
13
13
31040 Namit In Trouble   19 743 23.37
13
13
2 Prime Generator   621 78173 15.98
15
13
32 A Needle in the Haystack   192 10811 38.18
15
13
12471 DIE HARD   157 7844 39.09
12
14
2852 Broken Keyboard   19 1189 31.47
14
14
10500 Haybale stacking   22 3073 33.86
10
14
11814 Eko   170 14601 26.54
13
14
12260 Devlali Numbers   13 719 37.75
20
14
27320 Card Game   13 348 38.84
9
14
36166 Lucifer and Magical Substrings   13 96 45.49
12
14
302 Count on Cantor   154 12975 61.34
13
14
3878 Rectangles Perimeter   58 2689 49.85
12
14
11402 The Indian Connection   19 2286 36.20
8
14
16281 War   13 1095 48.01
8
14
23153 Equivalent Passwords   9 71 36.04
21
14
27487 Police Men   10 240 42.54
14
14
34502 ZERO TRIPLET   12 77 15.72
17
14
34619 Pizza Prize   6 128 45.88
16
14
34670 TWISTED ARRAY   186 41.43
2
14
16487 Update the array !   164 4854 38.58
9
14
10283 ALL IZZ WELL   69 3426 31.26
17
14
4164 A conjecture of Paul ErdÅ‘s   23 2009 45.08
16
14
91 Two squares or not two squares   79 5997 24.55
11
14

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