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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   300 216329 33.05
4
3
2 Prime Generator   627 79793 16.07
15
13
3 Substring Check (Bug Funny)   8 1068 7.44
42
16
4 Transform the Expression   258 43221 49.23
12
11
5 The Next Palindrome   452 20107 10.74
25
18
6 Simple Arithmetics   11 3028 12.21
30
9
7 The Bulk!   6 508 15.80
30
24
8 Complete the Sequence!   32 4406 37.49
16
18
9 Direct Visibility   4 254 11.83
30
21
10 Complicated Expressions   11 1550 32.04
16
16
11 Factorial   174 58737 44.93
6
12
12 The Game of Master-Mind   1 754 46.65
17
17
13 Hotline   2 203 16.57
34
23
14 I-Keyboard   7 1282 43.53
23
22
15 The Shortest Path   156 7543 24.09
17
12
16 Sphere in a tetrahedron   12 3503 56.12
11
16
17 The Bytelandian Cryptographer (Act I)   8 1363 41.87
15
26
18 The Bytelandian Cryptographer (Act II)   4 666 29.54
25
1
19 The Bytelandian Cryptographer (Act III)   1 128 35.79
17
26
20 The Bytelandian Cryptographer (Act IV)   2 55 26.40
21
34
22 Triangle From Centroid   9 2663 46.40
9
22
23 Pyramids   -20 5638 36.91
9
15
24 Small factorials   154 50055 29.65
15
9
25 Pouring water   100 5409 24.24
19
22
26 Build the Fence   37 2224 28.15
22
17
27 Sorting Bank Accounts   53 8782 40.42
11
6
28 Help the Military Recruitment Office!   7 783 16.13
12
8
29 Hash it!   14 3593 24.13
14
8
30 Bytelandian Blingors Network   54 3740 39.15
14
10
31 Fast Multiplication   48 8822 20.74
15
12
32 A Needle in the Haystack   193 11020 38.23
15
14
33 Trip   18 1987 26.37
25
16
34 Run Away   2 483 21.79
26
34
35 Equipment Box   6 1309 14.55
8
21
36 Secret Code   6 544 36.11
17
17
37 The Proper Key   1 135 14.57
17
17
38 Labyrinth   97 5304 25.75
17
16
39 Piggy-Bank   140 8114 35.46
14
16
40 Lifting the Stone   6 1610 23.55
13
16
41 Play on Words   42 3226 19.40
21
24
42 Adding Reversed Numbers   103 77759 48.30
6
4
43 Copying Books   45 2759 25.59
19
19
44 Substitution Cipher   2 324 13.57
17
17
45 Commedia dell Arte   2 240 33.72
5
26
47 Skyscraper Floors   7 285 12.74
23
20
48 Glass Beads   29 3394 37.85
15
18
49 Hares and Foxes   1 107 7.62
17
26
50 Invitation Cards   29 1731 42.90
16
18
51 Fake tournament   42 1798 27.25
18
19
54 Julka   163 23070 27.48
19
6

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