list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   54 74026 33.80
2
1
2 Prime Generator   61 22913 16.17
17
12
3 Substring Check (Bug Funny)   517 9.67
42
1
4 Transform the Expression   18 16028 49.52
4
9
5 The Next Palindrome   50 7871 10.07
22
21
6 Simple Arithmetics   -1 1599 12.58
27
8
7 The Bulk!   285 26.73
8 Complete the Sequence!   4 1561 32.74
9
17
9 Direct Visibility   179 18.74
10 Complicated Expressions   591 26.85
11 Factorial   18 23707 45.67
6
8
12 The Game of Master-Mind   183 45.66
13 Hotline   143 30.12
14 I-Keyboard   636 37.23
15 The Shortest Path   7 1938 20.88
21
15
16 Sphere in a tetrahedron   1 1595 57.50
9
17
17 The Bytelandian Cryptographer (Act I)   1 593 31.96
1
1
18 The Bytelandian Cryptographer (Act II)   559 36.93
19 The Bytelandian Cryptographer (Act III)   114 44.56
20 The Bytelandian Cryptographer (Act IV)   1 31 7.18
34
50
22 Triangle From Centroid   1 1116 41.65
1
17
23 Pyramids   -6 2864 36.50
6
6
24 Small factorials   15 19419 30.50
17
9
25 Pouring water   6 2067 19.59
17
6
26 Build the Fence   6 946 29.42
21
13
27 Sorting Bank Accounts   3 3485 40.28
1
1
28 Help the Military Recruitment Office!   2 334 12.54
17
1
29 Hash it!   1 1443 21.52
1
1
30 Bytelandian Blingors Network   7 1615 33.38
15
9
31 Fast Multiplication   4 1497 12.92
1
1
32 A Needle in the Haystack   14 3187 35.46
11
10
33 Trip   2 747 19.20
17
34
34 Run Away   202 32.51
35 Equipment Box   1 727 13.88
1
34
36 Secret Code   1 163 25.35
1
17
37 The Proper Key   122 22.19
38 Labyrinth   2 2179 23.34
17
17
39 Piggy-Bank   15 3438 32.68
12
12
40 Lifting the Stone   2 1024 20.67
9
9
41 Play on Words   6 1814 17.59
17
27
42 Adding Reversed Numbers   9 28047 48.16
6
5
43 Copying Books   1028 24.91
44 Substitution Cipher   2 277 15.10
17
17
45 Commedia dell Arte   161 40.61
47 Skyscraper Floors   1 234 14.04
48 Glass Beads   4 1888 35.72
12
15
49 Hares and Foxes   93 12.77
50 Invitation Cards   3 615 37.66
17
17
51 Fake tournament   3 748 21.67
17
34
54 Julka   14 10300 28.38
20
4

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