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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   301 218621 33.09
4
3
2 Prime Generator   627 80793 16.14
15
13
3 Substring Check (Bug Funny)   8 1068 7.27
42
16
4 Transform the Expression   258 43591 49.29
12
11
5 The Next Palindrome   452 20298 10.77
25
18
6 Simple Arithmetics   11 3035 12.14
30
9
7 The Bulk!   6 512 15.36
30
24
8 Complete the Sequence!   32 4428 37.16
16
18
9 Direct Visibility   4 256 11.90
30
21
10 Complicated Expressions   11 1558 31.90
17
17
11 Factorial   175 59283 44.97
6
12
12 The Game of Master-Mind   1 761 45.63
17
17
13 Hotline   2 207 16.46
34
23
14 I-Keyboard   7 1288 43.09
23
22
15 The Shortest Path   157 7591 24.08
17
12
16 Sphere in a tetrahedron   12 3513 55.96
11
16
17 The Bytelandian Cryptographer (Act I)   9 1369 41.77
15
26
18 The Bytelandian Cryptographer (Act II)   4 665 29.27
25
1
19 The Bytelandian Cryptographer (Act III)   1 128 35.61
17
26
20 The Bytelandian Cryptographer (Act IV)   2 55 26.36
21
34
22 Triangle From Centroid   10 2679 45.89
8
20
23 Pyramids   -20 5665 36.79
9
15
24 Small factorials   154 50467 29.62
15
9
25 Pouring water   100 5459 24.27
19
22
26 Build the Fence   37 2229 28.09
22
17
27 Sorting Bank Accounts   53 8841 40.31
11
6
28 Help the Military Recruitment Office!   8 785 16.12
12
9
29 Hash it!   14 3623 24.13
14
8
30 Bytelandian Blingors Network   54 3754 39.18
14
10
31 Fast Multiplication   48 8927 20.81
15
12
32 A Needle in the Haystack   193 11131 38.27
15
14
33 Trip   17 2010 26.37
25
16
34 Run Away   2 505 21.58
26
34
35 Equipment Box   6 1315 14.53
8
21
36 Secret Code   6 546 35.96
17
17
37 The Proper Key   1 137 14.12
17
17
38 Labyrinth   98 5318 25.77
18
16
39 Piggy-Bank   140 8150 35.44
14
16
40 Lifting the Stone   6 1619 23.60
13
16
41 Play on Words   42 3257 19.43
21
24
42 Adding Reversed Numbers   103 79906 48.22
6
4
43 Copying Books   45 2794 25.65
19
19
44 Substitution Cipher   3 326 13.57
17
17
45 Commedia dell Arte   2 244 33.52
5
26
47 Skyscraper Floors   8 288 12.73
22
22
48 Glass Beads   29 3417 37.91
15
18
49 Hares and Foxes   1 107 7.56
17
26
50 Invitation Cards   29 1741 43.07
16
18
51 Fake tournament   43 1801 27.14
18
19
54 Julka   163 23200 27.46
19
6

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