list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   113 95265 33.05
3
2
2 Prime Generator   174 29831 15.42
18
15
3 Substring Check (Bug Funny)   688 10.86
39
10
4 Transform the Expression   54 19774 49.16
9
11
5 The Next Palindrome   137 9867 9.95
24
19
6 Simple Arithmetics   2 1793 12.32
32
10
7 The Bulk!   3 309 27.89
30
17
8 Complete the Sequence!   11 1802 32.70
17
16
9 Direct Visibility   187 18.19
10 Complicated Expressions   1 645 26.57
17
9
11 Factorial   54 28390 45.58
6
10
12 The Game of Master-Mind   203 44.07
13 Hotline   148 29.03
14 I-Keyboard   3 693 37.28
26
26
15 The Shortest Path   32 2618 21.05
22
14
16 Sphere in a tetrahedron   6 1860 58.04
12
8
17 The Bytelandian Cryptographer (Act I)   5 667 32.36
12
23
18 The Bytelandian Cryptographer (Act II)   584 37.36
34
1
19 The Bytelandian Cryptographer (Act III)   118 44.71
20 The Bytelandian Cryptographer (Act IV)   33 7.12
28
34
22 Triangle From Centroid   4 1277 42.93
9
23
23 Pyramids   -15 3371 37.16
6
13
24 Small factorials   47 23269 30.40
15
9
25 Pouring water   25 2570 20.67
14
16
26 Build the Fence   19 1183 30.46
22
15
27 Sorting Bank Accounts   16 4246 40.64
8
5
28 Help the Military Recruitment Office!   1 363 12.73
17
1
29 Hash it!   4 1634 21.39
9
5
30 Bytelandian Blingors Network   20 1976 34.67
17
9
31 Fast Multiplication   20 2490 15.02
11
12
32 A Needle in the Haystack   60 4316 35.94
13
11
33 Trip   8 873 19.94
27
17
34 Run Away   214 33.01
35 Equipment Box   2 796 13.90
13
21
36 Secret Code   4 173 25.19
17
26
37 The Proper Key   1 125 22.24
17
17
38 Labyrinth   21 2751 23.90
18
17
39 Piggy-Bank   44 4347 33.00
14
15
40 Lifting the Stone   3 1148 21.35
17
21
41 Play on Words   14 2005 17.61
19
23
42 Adding Reversed Numbers   28 34017 48.21
6
5
43 Copying Books   4 1260 24.95
15
26
44 Substitution Cipher   2 289 15.38
17
17
45 Commedia dell Arte   165 39.20
1
17
47 Skyscraper Floors   1 240 13.75
48 Glass Beads   13 2141 35.76
14
16
49 Hares and Foxes   -1 96 10.98
50 Invitation Cards   9 730 38.68
17
20
51 Fake tournament   17 948 23.26
13
16
54 Julka   47 12321 28.22
18
5

Most popular tags