list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   279 184224 32.48
4
3
2 Prime Generator   594 64755 15.40
15
14
3 Substring Check (Bug Funny)   5 1028 9.40
41
16
4 Transform the Expression   252 37087 48.66
12
11
5 The Next Palindrome   442 17693 10.52
25
18
6 Simple Arithmetics   10 2682 12.72
30
9
7 The Bulk!   5 387 18.79
28
21
8 Complete the Sequence!   30 3154 35.47
16
19
9 Direct Visibility   3 225 14.54
29
22
10 Complicated Expressions   11 1076 28.72
16
17
11 Factorial   169 48679 44.94
6
12
12 The Game of Master-Mind   383 45.73
13 Hotline   1 174 21.14
34
34
14 I-Keyboard   5 951 39.38
28
26
15 The Shortest Path   149 6171 23.42
16
12
16 Sphere in a tetrahedron   12 2747 56.75
11
16
17 The Bytelandian Cryptographer (Act I)   8 992 36.80
17
24
18 The Bytelandian Cryptographer (Act II)   4 653 32.78
25
1
19 The Bytelandian Cryptographer (Act III)   1 124 40.65
17
17
20 The Bytelandian Cryptographer (Act IV)   1 50 24.78
28
34
22 Triangle From Centroid   9 1911 44.24
10
22
23 Pyramids   -23 4701 35.57
10
15
24 Small factorials   151 40574 30.08
15
9
25 Pouring water   97 4535 23.31
19
22
26 Build the Fence   37 1977 30.01
22
17
27 Sorting Bank Accounts   52 7558 40.17
11
6
28 Help the Military Recruitment Office!   6 593 14.32
12
8
29 Hash it!   13 2914 22.91
15
8
30 Bytelandian Blingors Network   53 3374 37.83
14
9
31 Fast Multiplication   48 6166 18.81
14
12
32 A Needle in the Haystack   179 8985 37.07
14
14
33 Trip   18 1503 23.17
25
16
34 Run Away   2 312 24.16
26
34
35 Equipment Box   5 1043 13.60
8
20
36 Secret Code   6 294 28.18
17
17
37 The Proper Key   1 131 18.58
17
17
38 Labyrinth   95 4851 24.97
17
16
39 Piggy-Bank   137 7101 34.26
14
16
40 Lifting the Stone   6 1397 22.10
13
16
41 Play on Words   42 2801 18.46
21
24
42 Adding Reversed Numbers   99 59757 48.52
6
4
43 Copying Books   41 2217 23.89
20
19
44 Substitution Cipher   2 306 14.66
17
17
45 Commedia dell Arte   209 38.10
1
17
47 Skyscraper Floors   5 264 13.08
28
17
48 Glass Beads   27 2815 35.78
15
17
49 Hares and Foxes   103 9.65
17
34
50 Invitation Cards   29 1332 40.31
16
19
51 Fake tournament   41 1471 25.23
18
20
54 Julka   158 19312 26.85
19
6

Most popular tags