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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   300 216562 33.05
4
3
2 Prime Generator   627 79879 16.08
15
13
4 Transform the Expression   258 43248 49.24
12
11
5 The Next Palindrome   452 20117 10.74
25
18
6 Simple Arithmetics   11 3028 12.20
30
9
7 The Bulk!   6 510 15.79
30
24
8 Complete the Sequence!   32 4408 37.45
16
18
9 Direct Visibility   4 255 11.82
30
21
10 Complicated Expressions   11 1551 32.03
17
17
11 Factorial   174 58769 44.93
6
12
12 The Game of Master-Mind   1 756 46.63
17
17
13 Hotline   2 204 16.62
34
23
14 I-Keyboard   7 1283 43.47
23
22
15 The Shortest Path   156 7545 24.09
17
12
16 Sphere in a tetrahedron   12 3504 56.11
11
16
17 The Bytelandian Cryptographer (Act I)   8 1364 41.86
15
26
20 The Bytelandian Cryptographer (Act IV)   2 55 26.40
21
34
22 Triangle From Centroid   9 2664 46.40
9
22
23 Pyramids   -20 5639 36.91
9
15
24 Small factorials   154 50091 29.64
15
9
25 Pouring water   100 5412 24.24
19
22
26 Build the Fence   37 2224 28.16
22
17
27 Sorting Bank Accounts   53 8785 40.41
11
6
28 Help the Military Recruitment Office!   7 784 16.14
12
8
29 Hash it!   14 3594 24.14
14
8
30 Bytelandian Blingors Network   54 3743 39.15
14
10
31 Fast Multiplication   48 8842 20.77
15
12
32 A Needle in the Haystack   194 11035 38.24
15
14
33 Trip   18 1988 26.37
25
16
34 Run Away   2 483 21.79
26
34
35 Equipment Box   6 1310 14.56
8
21
36 Secret Code   6 545 36.13
17
17
37 The Proper Key   1 135 14.57
17
17
38 Labyrinth   97 5306 25.76
17
16
39 Piggy-Bank   140 8117 35.46
14
16
40 Lifting the Stone   6 1612 23.56
13
16
41 Play on Words   42 3227 19.40
21
24
42 Adding Reversed Numbers   103 78166 48.28
6
4
43 Copying Books   45 2764 25.59
19
19
44 Substitution Cipher   2 325 13.57
17
17
45 Commedia dell Arte   2 241 33.79
5
26
47 Skyscraper Floors   7 286 12.76
23
20
48 Glass Beads   29 3396 37.86
15
18
49 Hares and Foxes   1 107 7.62
17
26
50 Invitation Cards   29 1733 42.92
16
18
51 Fake tournament   42 1799 27.25
18
19
54 Julka   163 23078 27.48
19
6
55 Jasiek   3 465 28.17
21
13
56 Dyzio   8 1213 31.46
11
14
57 Supernumbers in a permutation   22 1065 32.59
17
19

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