list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   107 92295 33.11
3
2
2 Prime Generator   155 28863 15.51
18
15
3 Substring Check (Bug Funny)   682 11.01
39
10
4 Transform the Expression   45 19240 49.11
8
10
5 The Next Palindrome   120 9578 9.95
24
21
6 Simple Arithmetics   3 1761 12.32
34
11
7 The Bulk!   3 307 27.95
30
17
8 Complete the Sequence!   8 1758 32.76
17
17
9 Direct Visibility   186 18.17
10 Complicated Expressions   1 635 26.47
17
9
11 Factorial   48 27791 45.60
6
10
12 The Game of Master-Mind   201 44.33
13 Hotline   146 29.41
14 I-Keyboard   3 682 37.30
26
26
15 The Shortest Path   25 2456 21.03
21
15
16 Sphere in a tetrahedron   6 1815 57.96
13
9
17 The Bytelandian Cryptographer (Act I)   4 659 32.20
12
23
18 The Bytelandian Cryptographer (Act II)   -1 581 37.32
34
1
19 The Bytelandian Cryptographer (Act III)   118 44.71
20 The Bytelandian Cryptographer (Act IV)   33 7.14
28
34
22 Triangle From Centroid   4 1256 42.63
9
23
23 Pyramids   -13 3294 37.04
5
13
24 Small factorials   42 22786 30.42
15
9
25 Pouring water   21 2475 20.32
16
17
26 Build the Fence   18 1141 30.20
22
15
27 Sorting Bank Accounts   16 4109 40.52
7
5
28 Help the Military Recruitment Office!   1 356 12.67
17
1
29 Hash it!   4 1606 21.39
9
5
30 Bytelandian Blingors Network   15 1912 34.35
17
10
31 Fast Multiplication   17 2318 14.69
11
12
32 A Needle in the Haystack   52 4125 35.89
13
12
33 Trip   7 850 19.89
27
17
34 Run Away   213 32.89
35 Equipment Box   3 783 13.86
6
28
36 Secret Code   2 167 24.73
17
26
37 The Proper Key   124 22.33
38 Labyrinth   19 2590 23.66
18
17
39 Piggy-Bank   40 4184 32.81
13
14
40 Lifting the Stone   3 1134 21.27
17
21
41 Play on Words   13 1963 17.60
17
24
42 Adding Reversed Numbers   27 33245 48.18
6
5
43 Copying Books   3 1180 25.36
14
24
44 Substitution Cipher   2 286 15.29
17
17
45 Commedia dell Arte   165 39.27
1
17
47 Skyscraper Floors   1 239 13.78
48 Glass Beads   12 2101 35.82
14
16
49 Hares and Foxes   95 11.33
50 Invitation Cards   8 698 38.54
17
17
51 Fake tournament   17 911 22.94
13
16
54 Julka   43 12001 28.22
18
5

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