list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   114 94983 33.06
3
2
2 Prime Generator   173 29751 15.43
18
15
3 Substring Check (Bug Funny)   687 10.86
39
10
4 Transform the Expression   52 19742 49.19
8
10
5 The Next Palindrome   133 9837 9.95
24
20
6 Simple Arithmetics   2 1788 12.32
32
10
7 The Bulk!   3 309 27.89
30
17
8 Complete the Sequence!   11 1797 32.70
17
16
9 Direct Visibility   187 18.19
10 Complicated Expressions   1 644 26.54
17
9
11 Factorial   54 28347 45.59
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 2610 21.04
22
14
16 Sphere in a tetrahedron   6 1860 58.04
12
8
17 The Bytelandian Cryptographer (Act I)   5 666 32.33
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 1275 42.93
9
23
23 Pyramids   -15 3368 37.16
6
13
24 Small factorials   47 23246 30.43
15
9
25 Pouring water   25 2558 20.63
14
16
26 Build the Fence   19 1181 30.46
22
15
27 Sorting Bank Accounts   16 4239 40.64
8
5
28 Help the Military Recruitment Office!   1 363 12.73
17
1
29 Hash it!   4 1633 21.40
9
5
30 Bytelandian Blingors Network   20 1972 34.64
17
9
31 Fast Multiplication   20 2482 14.98
11
12
32 A Needle in the Haystack   59 4304 35.93
13
11
33 Trip   7 872 19.97
27
17
34 Run Away   214 33.01
35 Equipment Box   2 796 13.90
13
21
36 Secret Code   4 171 25.11
17
26
37 The Proper Key   124 22.15
38 Labyrinth   21 2736 23.88
18
17
39 Piggy-Bank   44 4335 32.98
14
15
40 Lifting the Stone   3 1148 21.36
17
21
41 Play on Words   14 2004 17.62
19
23
42 Adding Reversed Numbers   28 33946 48.25
6
5
43 Copying Books   4 1255 24.90
15
26
44 Substitution Cipher   2 288 15.35
17
17
45 Commedia dell Arte   165 39.20
1
17
47 Skyscraper Floors   1 240 13.75
48 Glass Beads   13 2138 35.74
14
16
49 Hares and Foxes   -1 96 10.98
50 Invitation Cards   9 728 38.63
17
20
51 Fake tournament   17 946 23.24
13
16
54 Julka   47 12302 28.23
18
5

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