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list of classical problems


S ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   306 226211 33.21
4
3
2 Prime Generator   631 84442 16.42
15
14
3 Substring Check (Bug Funny)   10 1093 6.88
40
15
4 Transform the Expression   258 44761 49.58
12
11
5 The Next Palindrome   452 21026 10.94
25
18
6 Simple Arithmetics   12 3130 12.00
30
9
7 The Bulk!   6 546 14.66
30
24
8 Complete the Sequence!   32 4586 36.75
16
18
9 Direct Visibility   4 278 11.86
30
21
10 Complicated Expressions   11 1606 31.65
17
17
11 Factorial   175 61214 45.24
6
12
12 The Game of Master-Mind   1 823 44.51
17
17
13 Hotline   2 223 15.92
34
23
14 I-Keyboard   8 1331 42.73
24
21
15 The Shortest Path   157 7899 24.22
17
12
16 Sphere in a tetrahedron   12 3585 55.29
11
16
17 The Bytelandian Cryptographer (Act I)   9 1406 41.53
15
26
18 The Bytelandian Cryptographer (Act II)   4 671 27.77
25
1
19 The Bytelandian Cryptographer (Act III)   1 130 30.82
17
26
20 The Bytelandian Cryptographer (Act IV)   2 65 25.81
21
34
22 Triangle From Centroid   10 2726 45.15
8
20
23 Pyramids   -19 5766 36.67
9
15
24 Small factorials   154 51733 29.71
15
9
25 Pouring water   100 5633 24.54
19
22
26 Build the Fence   37 2298 28.25
22
17
27 Sorting Bank Accounts   53 9088 40.38
11
6
28 Help the Military Recruitment Office!   9 822 16.44
11
8
29 Hash it!   14 3743 24.42
14
8
30 Bytelandian Blingors Network   54 3840 39.42
14
10
31 Fast Multiplication   49 9078 20.69
15
12
32 A Needle in the Haystack   194 11570 38.54
15
13
33 Trip   17 2100 26.53
25
16
34 Run Away   2 553 22.52
26
34
35 Equipment Box   6 1337 14.45
8
21
36 Secret Code   6 559 35.00
17
17
37 The Proper Key   1 150 14.27
17
17
38 Labyrinth   98 5378 25.86
18
16
39 Piggy-Bank   139 8298 35.58
14
16
40 Lifting the Stone   6 1676 24.09
13
16
41 Play on Words   44 3348 19.69
21
24
42 Adding Reversed Numbers   103 89668 48.74
6
4
43 Copying Books   45 2884 25.84
19
19
44 Substitution Cipher   3 349 13.91
17
17
45 Commedia dell Arte   2 254 31.62
5
26
47 Skyscraper Floors   8 302 12.82
22
22
48 Glass Beads   29 3503 38.20
15
18
49 Hares and Foxes   1 127 8.38
17
26
50 Invitation Cards   29 1808 43.20
16
18
51 Fake tournament   43 1833 26.94
18
19
54 Julka   165 23496 27.58
19
6

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