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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   302 219922 33.12
4
3
2 Prime Generator   627 81408 16.18
15
13
3 Substring Check (Bug Funny)   8 1071 7.18
42
16
4 Transform the Expression   258 43765 49.32
12
11
5 The Next Palindrome   452 20373 10.75
25
18
6 Simple Arithmetics   11 3040 12.08
30
9
7 The Bulk!   6 515 15.27
30
24
8 Complete the Sequence!   32 4440 37.01
16
18
9 Direct Visibility   4 257 11.85
30
21
10 Complicated Expressions   11 1559 31.83
17
17
11 Factorial   175 59688 44.95
6
12
12 The Game of Master-Mind   1 771 45.30
17
17
13 Hotline   2 208 16.44
34
23
14 I-Keyboard   7 1289 42.99
23
22
15 The Shortest Path   157 7607 24.06
17
12
16 Sphere in a tetrahedron   12 3519 55.68
11
16
17 The Bytelandian Cryptographer (Act I)   9 1371 41.75
15
26
18 The Bytelandian Cryptographer (Act II)   4 665 28.92
25
1
19 The Bytelandian Cryptographer (Act III)   1 128 35.61
17
26
20 The Bytelandian Cryptographer (Act IV)   2 56 26.05
21
34
22 Triangle From Centroid   10 2682 45.81
8
20
23 Pyramids   -20 5684 36.74
9
15
24 Small factorials   154 50748 29.60
15
9
25 Pouring water   100 5476 24.27
19
22
26 Build the Fence   37 2232 28.05
22
17
27 Sorting Bank Accounts   53 8861 40.29
11
6
28 Help the Military Recruitment Office!   8 785 16.09
12
9
29 Hash it!   14 3630 24.14
14
8
30 Bytelandian Blingors Network   54 3757 39.18
14
10
31 Fast Multiplication   48 8961 20.76
15
12
32 A Needle in the Haystack   193 11168 38.27
15
14
33 Trip   17 2018 26.35
25
16
34 Run Away   2 510 21.63
26
34
35 Equipment Box   6 1316 14.48
8
21
36 Secret Code   6 546 35.83
17
17
37 The Proper Key   1 137 14.10
17
17
38 Labyrinth   98 5321 25.78
18
16
39 Piggy-Bank   140 8160 35.43
14
16
40 Lifting the Stone   6 1622 23.61
13
16
41 Play on Words   43 3270 19.49
21
24
42 Adding Reversed Numbers   103 82805 48.43
6
4
43 Copying Books   45 2798 25.65
19
19
44 Substitution Cipher   3 328 13.60
17
17
45 Commedia dell Arte   2 246 33.37
5
26
47 Skyscraper Floors   8 288 12.71
22
22
48 Glass Beads   29 3426 37.93
15
18
49 Hares and Foxes   1 109 7.61
17
26
50 Invitation Cards   29 1747 43.08
16
18
51 Fake tournament   43 1803 27.09
18
19
54 Julka   163 23245 27.47
19
6

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