list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   120 98728 32.97
3
2
2 Prime Generator   195 30912 15.34
18
15
3 Substring Check (Bug Funny)   703 10.87
39
10
4 Transform the Expression   58 20313 49.10
9
11
5 The Next Palindrome   147 10154 9.92
24
20
6 Simple Arithmetics   2 1827 12.29
32
10
7 The Bulk!   3 312 27.81
30
17
8 Complete the Sequence!   12 1835 32.69
17
16
9 Direct Visibility   188 18.12
10 Complicated Expressions   2 652 26.62
17
9
11 Factorial   61 29067 45.64
6
11
12 The Game of Master-Mind   206 43.73
13 Hotline   149 29.00
14 I-Keyboard   3 698 37.27
26
26
15 The Shortest Path   36 2727 21.26
21
13
16 Sphere in a tetrahedron   6 1888 58.23
12
8
17 The Bytelandian Cryptographer (Act I)   5 676 32.28
12
23
18 The Bytelandian Cryptographer (Act II)   591 37.25
34
1
19 The Bytelandian Cryptographer (Act III)   118 44.71
20 The Bytelandian Cryptographer (Act IV)   33 7.12
28
34
22 Triangle From Centroid   4 1298 42.98
9
23
23 Pyramids   -15 3421 37.10
6
13
24 Small factorials   52 23833 30.37
16
10
25 Pouring water   31 2637 20.76
17
19
26 Build the Fence   20 1207 30.46
22
15
27 Sorting Bank Accounts   20 4348 40.55
9
6
28 Help the Military Recruitment Office!   1 369 12.73
17
1
29 Hash it!   4 1654 21.41
11
4
30 Bytelandian Blingors Network   22 2025 34.96
14
8
31 Fast Multiplication   22 2590 15.10
11
11
32 A Needle in the Haystack   68 4460 36.03
13
13
33 Trip   10 900 20.05
26
15
34 Run Away   215 33.04
35 Equipment Box   2 803 13.86
13
21
36 Secret Code   4 174 25.03
17
26
37 The Proper Key   1 125 22.24
17
17
38 Labyrinth   23 2821 24.05
18
17
39 Piggy-Bank   50 4442 33.18
15
15
40 Lifting the Stone   3 1161 21.41
17
21
41 Play on Words   15 2031 17.66
17
21
42 Adding Reversed Numbers   29 34933 48.17
6
5
43 Copying Books   7 1298 25.15
19
23
44 Substitution Cipher   1 293 15.47
17
17
45 Commedia dell Arte   166 39.16
1
17
47 Skyscraper Floors   1 241 13.64
48 Glass Beads   14 2165 35.70
13
15
49 Hares and Foxes   -1 96 10.92
50 Invitation Cards   12 756 38.68
17
19
51 Fake tournament   19 969 23.45
12
16
54 Julka   51 12566 28.10
18
5

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