list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   232 144945 33.18
3
3
2 Prime Generator   441 48522 15.57
15
14
4 Transform the Expression   181 29480 49.16
12
11
5 The Next Palindrome   356 14431 10.19
25
19
6 Simple Arithmetics   11 2247 12.22
32
8
7 The Bulk!   3 362 24.51
30
17
8 Complete the Sequence!   26 2433 33.70
16
18
9 Direct Visibility   1 211 16.98
26
26
10 Complicated Expressions   9 770 25.84
16
13
11 Factorial   134 39090 45.93
5
12
12 The Game of Master-Mind   243 45.91
13 Hotline   163 27.05
14 I-Keyboard   4 763 37.05
28
26
15 The Shortest Path   91 4485 22.81
18
13
16 Sphere in a tetrahedron   10 2310 58.04
11
14
17 The Bytelandian Cryptographer (Act I)   9 781 33.23
14
23
20 The Bytelandian Cryptographer (Act IV)   1 42 25.08
28
34
22 Triangle From Centroid   7 1506 43.86
8
19
23 Pyramids   -23 4024 35.58
10
14
24 Small factorials   111 31988 30.40
15
9
25 Pouring water   72 3701 22.43
18
21
26 Build the Fence   31 1681 32.31
22
17
27 Sorting Bank Accounts   41 6074 40.71
12
7
28 Help the Military Recruitment Office!   4 463 13.38
15
6
29 Hash it!   10 2236 21.10
13
5
30 Bytelandian Blingors Network   43 2839 37.65
13
8
31 Fast Multiplication   39 4343 17.78
14
13
32 A Needle in the Haystack   117 6658 37.54
15
13
33 Trip   13 1192 21.67
24
15
34 Run Away   1 263 34.00
17
34
35 Equipment Box   3 894 13.73
11
17
36 Secret Code   6 189 24.11
17
17
37 The Proper Key   1 128 21.30
17
17
38 Labyrinth   63 4084 25.00
18
16
39 Piggy-Bank   114 5946 34.45
14
16
40 Lifting the Stone   4 1302 21.84
15
17
41 Play on Words   34 2455 18.22
21
26
42 Adding Reversed Numbers   78 48169 48.74
6
4
43 Copying Books   26 1729 23.95
19
19
44 Substitution Cipher   2 300 15.19
17
17
45 Commedia dell Arte   200 38.66
1
17
47 Skyscraper Floors   3 258 13.38
17
17
48 Glass Beads   23 2498 36.91
15
17
49 Hares and Foxes   -1 99 10.35
50 Invitation Cards   25 1076 42.26
16
18
51 Fake tournament   32 1257 25.13
16
18
54 Julka   128 16240 27.34
19
6
55 Jasiek   1 341 24.82
26
9
56 Dyzio   5 998 30.95
15
15
57 Supernumbers in a permutation   11 706 30.74
10
17

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