list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   280 184448 32.49
4
3
2 Prime Generator   594 64851 15.41
15
14
3 Substring Check (Bug Funny)   5 1028 9.39
41
16
4 Transform the Expression   252 37140 48.67
12
11
5 The Next Palindrome   443 17712 10.52
25
18
6 Simple Arithmetics   10 2686 12.71
30
9
7 The Bulk!   5 387 18.73
28
21
8 Complete the Sequence!   30 3158 35.47
16
19
9 Direct Visibility   3 225 14.50
29
22
10 Complicated Expressions   11 1078 28.74
16
17
11 Factorial   169 48746 44.95
6
12
12 The Game of Master-Mind   385 45.82
13 Hotline   1 174 21.10
34
34
14 I-Keyboard   5 953 39.43
28
26
15 The Shortest Path   149 6176 23.41
16
12
16 Sphere in a tetrahedron   12 2749 56.78
11
16
17 The Bytelandian Cryptographer (Act I)   8 996 36.89
17
24
18 The Bytelandian Cryptographer (Act II)   4 653 32.77
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 1920 44.31
10
22
23 Pyramids   -23 4710 35.59
10
15
24 Small factorials   151 40625 30.09
15
9
25 Pouring water   97 4541 23.33
19
22
26 Build the Fence   37 1980 30.00
22
17
27 Sorting Bank Accounts   52 7580 40.14
11
6
28 Help the Military Recruitment Office!   6 594 14.33
12
8
29 Hash it!   13 2917 22.92
15
8
30 Bytelandian Blingors Network   53 3376 37.84
14
9
31 Fast Multiplication   48 6184 18.83
14
12
32 A Needle in the Haystack   179 8993 37.05
14
14
33 Trip   18 1503 23.17
25
16
34 Run Away   2 313 24.08
26
34
35 Equipment Box   5 1043 13.59
8
20
36 Secret Code   6 294 28.18
17
17
37 The Proper Key   1 131 18.58
17
17
38 Labyrinth   96 4856 24.95
17
16
39 Piggy-Bank   137 7109 34.27
14
16
40 Lifting the Stone   6 1399 22.12
13
16
41 Play on Words   42 2804 18.47
21
24
42 Adding Reversed Numbers   99 59816 48.53
6
4
43 Copying Books   41 2219 23.87
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 2821 35.78
15
17
49 Hares and Foxes   103 9.65
17
34
50 Invitation Cards   29 1334 40.33
16
19
51 Fake tournament   41 1472 25.24
18
20
54 Julka   158 19329 26.85
19
6

Most popular tags