list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   298 214980 33.04
4
3
2 Prime Generator   626 79221 16.04
15
13
3 Substring Check (Bug Funny)   8 1065 7.54
42
16
4 Transform the Expression   258 43078 49.24
12
11
5 The Next Palindrome   452 20041 10.74
25
18
6 Simple Arithmetics   11 3020 12.30
30
9
7 The Bulk!   6 503 15.89
30
24
8 Complete the Sequence!   32 4393 37.63
16
18
9 Direct Visibility   4 251 11.81
30
21
10 Complicated Expressions   11 1544 32.17
16
16
11 Factorial   174 58503 44.94
6
12
12 The Game of Master-Mind   1 748 47.60
17
17
13 Hotline   2 199 16.49
34
23
14 I-Keyboard   6 1272 43.39
24
23
15 The Shortest Path   156 7516 24.09
17
12
16 Sphere in a tetrahedron   12 3493 56.31
11
16
17 The Bytelandian Cryptographer (Act I)   8 1353 41.76
15
26
18 The Bytelandian Cryptographer (Act II)   4 664 29.76
25
1
19 The Bytelandian Cryptographer (Act III)   1 128 37.80
17
26
20 The Bytelandian Cryptographer (Act IV)   2 55 26.85
21
34
22 Triangle From Centroid   9 2652 46.41
9
22
23 Pyramids   -20 5615 36.88
9
15
24 Small factorials   154 49820 29.69
15
9
25 Pouring water   100 5383 24.21
19
22
26 Build the Fence   37 2219 28.15
22
17
27 Sorting Bank Accounts   53 8768 40.42
11
6
28 Help the Military Recruitment Office!   6 778 16.11
12
9
29 Hash it!   14 3588 24.12
14
8
30 Bytelandian Blingors Network   54 3728 39.10
14
10
31 Fast Multiplication   48 8762 20.72
15
12
32 A Needle in the Haystack   193 10957 38.21
15
14
33 Trip   18 1958 25.99
25
16
34 Run Away   2 476 21.92
26
34
35 Equipment Box   6 1305 14.59
7
20
36 Secret Code   6 541 36.47
17
17
37 The Proper Key   1 135 15.43
17
17
38 Labyrinth   97 5294 25.76
17
16
39 Piggy-Bank   140 8099 35.44
14
16
40 Lifting the Stone   6 1604 23.50
13
16
41 Play on Words   42 3214 19.38
21
24
42 Adding Reversed Numbers   103 76960 48.36
6
4
43 Copying Books   45 2746 25.56
19
19
44 Substitution Cipher   2 322 13.52
17
17
45 Commedia dell Arte   2 238 34.36
5
26
47 Skyscraper Floors   6 282 12.63
24
17
48 Glass Beads   29 3382 37.85
15
18
49 Hares and Foxes   1 107 7.83
17
26
50 Invitation Cards   29 1726 42.95
16
18
51 Fake tournament   42 1792 27.29
18
19
54 Julka   163 23015 27.48
19
6

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