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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   301 217796 33.08
4
3
2 Prime Generator   627 80421 16.10
15
13
3 Substring Check (Bug Funny)   8 1067 7.32
42
16
4 Transform the Expression   258 43445 49.26
12
11
5 The Next Palindrome   452 20241 10.76
25
18
6 Simple Arithmetics   11 3033 12.15
30
9
7 The Bulk!   6 512 15.53
30
24
8 Complete the Sequence!   32 4418 37.24
16
18
9 Direct Visibility   4 256 11.94
30
21
10 Complicated Expressions   11 1556 31.99
17
17
11 Factorial   175 59118 44.97
6
12
12 The Game of Master-Mind   1 760 45.91
17
17
13 Hotline   2 207 16.56
34
23
14 I-Keyboard   7 1284 43.28
23
22
15 The Shortest Path   157 7574 24.07
17
12
16 Sphere in a tetrahedron   12 3508 56.02
11
16
17 The Bytelandian Cryptographer (Act I)   9 1366 41.81
15
26
18 The Bytelandian Cryptographer (Act II)   4 665 29.35
25
1
19 The Bytelandian Cryptographer (Act III)   1 128 35.61
17
26
20 The Bytelandian Cryptographer (Act IV)   2 55 26.39
21
34
22 Triangle From Centroid   10 2673 46.07
8
20
23 Pyramids   -20 5655 36.81
9
15
24 Small factorials   154 50343 29.62
15
9
25 Pouring water   100 5442 24.24
19
22
26 Build the Fence   37 2227 28.11
22
17
27 Sorting Bank Accounts   53 8801 40.39
11
6
28 Help the Military Recruitment Office!   8 785 16.13
12
9
29 Hash it!   14 3596 24.13
14
8
30 Bytelandian Blingors Network   54 3749 39.16
14
10
31 Fast Multiplication   48 8895 20.79
15
12
32 A Needle in the Haystack   193 11095 38.25
15
14
33 Trip   17 2001 26.39
25
16
34 Run Away   2 497 21.42
26
34
35 Equipment Box   6 1313 14.53
8
21
36 Secret Code   6 546 36.06
17
17
37 The Proper Key   1 135 13.97
17
17
38 Labyrinth   98 5317 25.77
18
16
39 Piggy-Bank   140 8134 35.45
14
16
40 Lifting the Stone   6 1616 23.59
13
16
41 Play on Words   42 3235 19.39
21
24
42 Adding Reversed Numbers   103 79630 48.21
6
4
43 Copying Books   45 2787 25.62
19
19
44 Substitution Cipher   3 326 13.57
17
17
45 Commedia dell Arte   2 241 33.52
5
26
47 Skyscraper Floors   8 287 12.72
22
22
48 Glass Beads   29 3414 37.90
15
18
49 Hares and Foxes   1 107 7.57
17
26
50 Invitation Cards   29 1736 43.02
16
18
51 Fake tournament   43 1801 27.17
18
19
54 Julka   163 23162 27.45
19
6

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