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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   302 220467 33.13
4
3
2 Prime Generator   628 81723 16.20
15
13
4 Transform the Expression   258 43885 49.33
12
11
5 The Next Palindrome   452 20404 10.75
25
18
6 Simple Arithmetics   12 3044 12.05
30
9
7 The Bulk!   6 520 15.20
30
24
8 Complete the Sequence!   32 4452 36.91
16
18
9 Direct Visibility   4 257 11.64
30
21
10 Complicated Expressions   11 1561 31.71
17
17
11 Factorial   175 59895 44.97
6
12
12 The Game of Master-Mind   1 773 44.75
17
17
13 Hotline   2 209 16.35
34
23
14 I-Keyboard   7 1289 42.72
23
22
15 The Shortest Path   157 7619 24.05
17
12
16 Sphere in a tetrahedron   12 3521 55.57
11
16
17 The Bytelandian Cryptographer (Act I)   9 1373 41.74
15
26
20 The Bytelandian Cryptographer (Act IV)   2 56 26.01
21
34
22 Triangle From Centroid   10 2685 45.69
8
20
23 Pyramids   -20 5691 36.71
9
15
24 Small factorials   154 50894 29.60
15
9
25 Pouring water   100 5489 24.28
19
22
26 Build the Fence   37 2235 28.03
22
17
27 Sorting Bank Accounts   53 8871 40.29
11
6
28 Help the Military Recruitment Office!   8 788 16.10
12
9
29 Hash it!   14 3637 24.15
14
8
30 Bytelandian Blingors Network   54 3764 39.20
14
10
31 Fast Multiplication   48 8977 20.74
15
12
32 A Needle in the Haystack   193 11202 38.29
15
14
33 Trip   17 2028 26.36
25
16
34 Run Away   2 517 21.69
26
34
35 Equipment Box   6 1317 14.45
8
21
36 Secret Code   6 547 35.64
17
17
37 The Proper Key   1 137 13.98
17
17
38 Labyrinth   98 5322 25.77
18
16
39 Piggy-Bank   140 8170 35.43
14
16
40 Lifting the Stone   6 1628 23.66
13
16
41 Play on Words   43 3273 19.49
21
24
42 Adding Reversed Numbers   103 83875 48.49
6
4
43 Copying Books   45 2804 25.65
19
19
44 Substitution Cipher   3 328 13.58
17
17
45 Commedia dell Arte   2 246 33.04
5
26
47 Skyscraper Floors   8 288 12.67
22
22
48 Glass Beads   29 3439 37.99
15
18
49 Hares and Foxes   1 109 7.58
17
26
50 Invitation Cards   29 1752 43.02
16
18
51 Fake tournament   43 1803 27.04
18
19
54 Julka   163 23278 27.49
19
6
55 Jasiek   3 468 28.14
21
13
56 Dyzio   8 1216 31.40
11
14
57 Supernumbers in a permutation   22 1087 32.88
17
19

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