list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   42 71767 33.87
2
1
2 Prime Generator   47 22066 16.24
16
11
3 Substring Check (Bug Funny)   502 9.49
42
1
4 Transform the Expression   12 15600 49.62
4
8
5 The Next Palindrome   38 7628 10.16
23
20
6 Simple Arithmetics   -1 1580 12.62
27
8
7 The Bulk!   282 26.41
8 Complete the Sequence!   4 1516 32.87
9
17
9 Direct Visibility   179 18.91
10 Complicated Expressions   586 26.89
11 Factorial   15 23053 45.67
7
8
12 The Game of Master-Mind   179 45.55
13 Hotline   142 29.90
14 I-Keyboard   632 37.25
15 The Shortest Path   5 1861 20.81
24
17
16 Sphere in a tetrahedron   1 1552 57.07
17
34
17 The Bytelandian Cryptographer (Act I)   584 31.76
18 The Bytelandian Cryptographer (Act II)   553 37.01
19 The Bytelandian Cryptographer (Act III)   112 44.17
20 The Bytelandian Cryptographer (Act IV)   1 31 7.25
34
50
22 Triangle From Centroid   1 1088 41.42
1
17
23 Pyramids   -3 2798 36.57
8
8
24 Small factorials   12 18911 30.44
14
8
25 Pouring water   6 1998 19.36
17
6
26 Build the Fence   4 922 29.47
17
12
27 Sorting Bank Accounts   3 3390 40.23
1
1
28 Help the Military Recruitment Office!   327 12.49
29 Hash it!   1 1414 21.45
30 Bytelandian Blingors Network   4 1568 33.16
17
9
31 Fast Multiplication   3 1388 12.66
1
1
32 A Needle in the Haystack   7 3055 35.21
11
11
33 Trip   730 19.14
34 Run Away   200 32.29
35 Equipment Box   1 710 13.85
1
34
36 Secret Code   1 161 25.35
1
17
37 The Proper Key   121 22.20
38 Labyrinth   2 2113 23.34
17
17
39 Piggy-Bank   6 3328 32.52
12
12
40 Lifting the Stone   2 1004 20.65
9
9
41 Play on Words   4 1779 17.59
21
30
42 Adding Reversed Numbers   7 27386 48.12
6
6
43 Copying Books   1014 24.94
44 Substitution Cipher   1 272 15.02
17
17
45 Commedia dell Arte   161 40.61
47 Skyscraper Floors   1 232 14.04
48 Glass Beads   3 1830 35.67
14
17
49 Hares and Foxes   92 12.94
50 Invitation Cards   1 601 37.51
51 Fake tournament   1 734 21.64
17
34
54 Julka   7 10016 28.33
19
5

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