list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   272 169826 33.61
3
3
2 Prime Generator   549 58583 15.75
16
14
3 Substring Check (Bug Funny)   6 999 9.83
41
12
4 Transform the Expression   236 34305 49.52
12
11
5 The Next Palindrome   432 16310 10.33
25
18
6 Simple Arithmetics   11 2425 12.32
31
8
7 The Bulk!   4 378 21.77
28
20
8 Complete the Sequence!   29 2787 34.57
16
18
9 Direct Visibility   1 216 15.96
21
26
10 Complicated Expressions   10 936 27.68
16
16
11 Factorial   157 44727 45.99
5
12
12 The Game of Master-Mind   298 43.41
13 Hotline   171 24.14
14 I-Keyboard   4 807 37.29
28
26
15 The Shortest Path   137 5542 23.68
16
12
16 Sphere in a tetrahedron   11 2466 57.61
12
14
17 The Bytelandian Cryptographer (Act I)   8 850 34.24
17
24
18 The Bytelandian Cryptographer (Act II)   4 651 34.13
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 1644 44.35
8
21
23 Pyramids   -24 4278 36.42
9
14
24 Small factorials   145 36847 30.29
15
9
25 Pouring water   89 4176 23.09
19
22
26 Build the Fence   36 1862 31.47
22
17
27 Sorting Bank Accounts   49 6839 40.84
11
6
28 Help the Military Recruitment Office!   6 498 13.58
12
8
29 Hash it!   12 2592 22.64
15
7
30 Bytelandian Blingors Network   52 3190 38.14
14
10
31 Fast Multiplication   46 5316 19.13
15
12
32 A Needle in the Haystack   157 7838 38.59
14
13
33 Trip   17 1341 22.84
25
15
34 Run Away   2 284 29.86
26
34
35 Equipment Box   5 963 14.05
8
20
36 Secret Code   6 223 26.03
17
17
37 The Proper Key   1 131 19.68
17
17
38 Labyrinth   88 4596 25.24
18
16
39 Piggy-Bank   131 6580 35.18
14
16
40 Lifting the Stone   6 1361 22.26
14
17
41 Play on Words   39 2654 18.62
21
24
42 Adding Reversed Numbers   90 54998 49.31
5
4
43 Copying Books   37 1951 23.67
19
19
44 Substitution Cipher   2 304 15.05
17
17
45 Commedia dell Arte   207 38.26
1
17
47 Skyscraper Floors   5 266 13.33
28
17
48 Glass Beads   24 2629 37.48
15
17
49 Hares and Foxes   -1 101 9.99
50 Invitation Cards   29 1196 43.22
16
19
51 Fake tournament   41 1362 25.61
18
20
54 Julka   153 17954 27.20
19
6

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