list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   272 170195 33.62
3
3
2 Prime Generator   553 58772 15.75
16
14
3 Substring Check (Bug Funny)   6 999 9.82
41
12
4 Transform the Expression   236 34385 49.52
12
11
5 The Next Palindrome   432 16348 10.33
25
18
6 Simple Arithmetics   11 2429 12.33
31
8
7 The Bulk!   4 378 21.70
28
20
8 Complete the Sequence!   29 2797 34.60
16
18
9 Direct Visibility   1 216 15.92
21
26
10 Complicated Expressions   10 936 27.68
16
16
11 Factorial   157 44858 46.00
5
12
12 The Game of Master-Mind   300 43.51
13 Hotline   171 24.14
14 I-Keyboard   4 807 37.29
28
26
15 The Shortest Path   138 5550 23.68
16
12
16 Sphere in a tetrahedron   11 2480 57.45
12
14
17 The Bytelandian Cryptographer (Act I)   8 851 34.25
17
24
18 The Bytelandian Cryptographer (Act II)   4 651 34.10
25
1
19 The Bytelandian Cryptographer (Act III)   1 124 40.90
17
17
20 The Bytelandian Cryptographer (Act IV)   1 47 24.84
28
34
22 Triangle From Centroid   9 1646 44.34
8
21
23 Pyramids   -24 4286 36.43
9
14
24 Small factorials   145 36992 30.29
15
9
25 Pouring water   91 4189 23.10
18
22
26 Build the Fence   36 1863 31.44
22
17
27 Sorting Bank Accounts   49 6859 40.78
11
6
28 Help the Military Recruitment Office!   6 498 13.58
12
8
29 Hash it!   12 2602 22.69
15
7
30 Bytelandian Blingors Network   52 3194 38.15
14
10
31 Fast Multiplication   46 5363 19.18
15
12
32 A Needle in the Haystack   157 7876 38.57
14
13
33 Trip   17 1347 22.88
25
15
34 Run Away   2 284 29.86
26
34
35 Equipment Box   5 963 14.03
8
20
36 Secret Code   6 224 26.09
17
17
37 The Proper Key   1 131 19.68
17
17
38 Labyrinth   90 4601 25.25
18
16
39 Piggy-Bank   131 6600 35.20
14
16
40 Lifting the Stone   6 1362 22.27
14
17
41 Play on Words   39 2658 18.63
21
24
42 Adding Reversed Numbers   90 55173 49.30
5
4
43 Copying Books   37 1956 23.67
19
19
44 Substitution Cipher   2 304 15.04
17
17
45 Commedia dell Arte   207 38.26
1
17
47 Skyscraper Floors   5 266 13.31
28
17
48 Glass Beads   24 2642 37.55
15
17
49 Hares and Foxes   -1 101 9.99
50 Invitation Cards   29 1206 43.26
16
19
51 Fake tournament   41 1364 25.63
18
20
54 Julka   153 17995 27.18
19
6

Most popular tags