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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   302 220414 33.12
4
3
2 Prime Generator   628 81691 16.20
15
13
4 Transform the Expression   258 43870 49.32
12
11
5 The Next Palindrome   452 20402 10.75
25
18
6 Simple Arithmetics   12 3044 12.05
30
9
7 The Bulk!   6 520 15.22
30
24
8 Complete the Sequence!   32 4449 36.92
16
18
9 Direct Visibility   4 257 11.64
30
21
10 Complicated Expressions   11 1561 31.72
17
17
11 Factorial   175 59868 44.97
6
12
12 The Game of Master-Mind   1 773 44.81
17
17
13 Hotline   2 209 16.36
34
23
14 I-Keyboard   7 1289 42.72
23
22
15 The Shortest Path   157 7617 24.05
17
12
16 Sphere in a tetrahedron   12 3521 55.59
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 5689 36.71
9
15
24 Small factorials   154 50876 29.60
15
9
25 Pouring water   100 5487 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 3636 24.15
14
8
30 Bytelandian Blingors Network   54 3764 39.20
14
10
31 Fast Multiplication   48 8974 20.74
15
12
32 A Needle in the Haystack   193 11199 38.29
15
14
33 Trip   17 2027 26.36
25
16
34 Run Away   2 514 21.66
26
34
35 Equipment Box   6 1317 14.46
8
21
36 Secret Code   6 546 35.61
17
17
37 The Proper Key   1 137 13.98
17
17
38 Labyrinth   98 5322 25.77
18
16
39 Piggy-Bank   140 8168 35.43
14
16
40 Lifting the Stone   6 1627 23.65
13
16
41 Play on Words   43 3273 19.49
21
24
42 Adding Reversed Numbers   103 83842 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 3433 37.96
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 23276 27.48
19
6
55 Jasiek   3 468 28.14
21
13
56 Dyzio   8 1216 31.40
11
14
57 Supernumbers in a permutation   22 1086 32.82
17
19

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