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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   295 212720 33.01
4
3
2 Prime Generator   620 78005 15.97
15
13
4 Transform the Expression   257 42643 49.17
12
11
5 The Next Palindrome   451 19898 10.74
25
18
6 Simple Arithmetics   10 2999 12.37
30
9
7 The Bulk!   6 495 16.10
30
24
8 Complete the Sequence!   31 4362 37.98
16
19
9 Direct Visibility   4 248 11.98
30
21
10 Complicated Expressions   11 1536 32.19
16
16
11 Factorial   173 57840 44.91
6
12
12 The Game of Master-Mind   1 737 49.14
17
17
13 Hotline   2 193 16.48
34
23
14 I-Keyboard   6 1257 43.57
24
23
15 The Shortest Path   156 7449 24.14
17
12
16 Sphere in a tetrahedron   12 3475 56.55
11
16
17 The Bytelandian Cryptographer (Act I)   8 1340 41.87
15
26
20 The Bytelandian Cryptographer (Act IV)   2 55 25.03
21
34
22 Triangle From Centroid   9 2626 46.62
9
22
23 Pyramids   -20 5590 36.99
9
15
24 Small factorials   153 49224 29.70
15
9
25 Pouring water   99 5326 24.12
19
22
26 Build the Fence   37 2196 28.32
22
17
27 Sorting Bank Accounts   53 8673 40.50
11
6
28 Help the Military Recruitment Office!   5 770 16.09
13
8
29 Hash it!   14 3538 24.17
14
8
30 Bytelandian Blingors Network   54 3708 39.02
14
10
31 Fast Multiplication   48 8593 20.62
15
12
32 A Needle in the Haystack   192 10794 38.17
15
13
33 Trip   18 1928 25.91
25
16
34 Run Away   2 466 21.91
26
34
35 Equipment Box   6 1288 14.67
7
20
36 Secret Code   6 534 36.63
17
17
37 The Proper Key   1 135 15.67
17
17
38 Labyrinth   97 5278 25.74
17
16
39 Piggy-Bank   139 8058 35.44
14
16
40 Lifting the Stone   6 1590 23.51
13
16
41 Play on Words   42 3198 19.38
21
24
42 Adding Reversed Numbers   103 75697 48.42
6
4
43 Copying Books   44 2708 25.60
19
19
44 Substitution Cipher   2 318 13.48
17
17
45 Commedia dell Arte   1 233 34.48
6
23
47 Skyscraper Floors   5 280 12.63
26
17
48 Glass Beads   27 3346 37.77
15
17
49 Hares and Foxes   1 106 8.06
17
26
50 Invitation Cards   29 1710 43.07
16
18
51 Fake tournament   42 1786 27.36
18
19
54 Julka   161 22856 27.43
19
6
55 Jasiek   3 460 28.21
21
13
56 Dyzio   8 1205 31.52
11
14
57 Supernumbers in a permutation   20 983 32.09
17
19

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