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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   304 223314 33.17
4
3
2 Prime Generator   630 83130 16.31
15
14
3 Substring Check (Bug Funny)   9 1083 6.99
40
15
4 Transform the Expression   258 44343 49.46
12
11
5 The Next Palindrome   452 20684 10.81
25
18
6 Simple Arithmetics   12 3078 11.99
30
9
7 The Bulk!   6 534 14.91
30
24
8 Complete the Sequence!   32 4519 36.74
16
18
9 Direct Visibility   4 267 11.65
30
21
10 Complicated Expressions   11 1580 31.64
17
17
11 Factorial   175 60649 45.14
6
12
12 The Game of Master-Mind   1 793 44.16
17
17
13 Hotline   2 214 16.07
34
23
14 I-Keyboard   8 1310 42.74
24
21
15 The Shortest Path   157 7719 24.07
17
12
16 Sphere in a tetrahedron   12 3550 55.22
11
16
17 The Bytelandian Cryptographer (Act I)   9 1391 41.45
15
26
18 The Bytelandian Cryptographer (Act II)   4 666 28.34
25
1
19 The Bytelandian Cryptographer (Act III)   1 129 34.05
17
26
20 The Bytelandian Cryptographer (Act IV)   2 60 25.77
21
34
22 Triangle From Centroid   10 2707 45.20
8
20
23 Pyramids   -19 5734 36.68
9
15
24 Small factorials   154 51395 29.64
15
9
25 Pouring water   100 5578 24.41
19
22
26 Build the Fence   37 2265 28.13
22
17
27 Sorting Bank Accounts   53 8975 40.34
11
6
28 Help the Military Recruitment Office!   8 805 16.24
12
9
29 Hash it!   14 3650 24.17
14
8
30 Bytelandian Blingors Network   54 3791 39.26
14
10
31 Fast Multiplication   49 9042 20.71
15
12
32 A Needle in the Haystack   193 11375 38.37
15
14
33 Trip   17 2072 26.41
25
16
34 Run Away   2 538 22.39
26
34
35 Equipment Box   6 1329 14.46
8
21
36 Secret Code   6 553 35.34
17
17
37 The Proper Key   1 142 13.93
17
17
38 Labyrinth   98 5361 25.82
18
16
39 Piggy-Bank   140 8247 35.53
14
16
40 Lifting the Stone   6 1651 23.80
13
16
41 Play on Words   43 3311 19.60
21
24
42 Adding Reversed Numbers   103 87928 48.68
6
4
43 Copying Books   45 2849 25.81
19
19
44 Substitution Cipher   3 339 13.79
17
17
45 Commedia dell Arte   2 251 32.38
5
26
47 Skyscraper Floors   8 295 12.70
22
22
48 Glass Beads   29 3473 38.07
15
18
49 Hares and Foxes   1 118 7.82
17
26
50 Invitation Cards   29 1781 43.12
16
18
51 Fake tournament   43 1818 26.95
18
19
54 Julka   165 23423 27.54
19
6

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