list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   112 93813 33.09
3
2
2 Prime Generator   167 29390 15.47
18
15
3 Substring Check (Bug Funny)   687 10.94
39
10
4 Transform the Expression   50 19526 49.17
9
10
5 The Next Palindrome   129 9727 9.96
24
20
6 Simple Arithmetics   3 1774 12.31
34
11
7 The Bulk!   3 309 27.92
30
17
8 Complete the Sequence!   10 1783 32.59
17
17
9 Direct Visibility   186 18.14
10 Complicated Expressions   1 640 26.45
17
9
11 Factorial   51 28126 45.63
6
11
12 The Game of Master-Mind   202 44.06
13 Hotline   147 29.06
14 I-Keyboard   3 689 37.21
26
26
15 The Shortest Path   28 2551 20.99
20
14
16 Sphere in a tetrahedron   7 1837 57.96
12
8
17 The Bytelandian Cryptographer (Act I)   5 660 32.15
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 7.14
28
34
22 Triangle From Centroid   4 1266 42.79
9
23
23 Pyramids   -14 3337 37.15
5
12
24 Small factorials   46 23058 30.46
15
9
25 Pouring water   23 2520 20.52
15
16
26 Build the Fence   19 1169 30.42
22
15
27 Sorting Bank Accounts   16 4196 40.61
8
5
28 Help the Military Recruitment Office!   1 361 12.71
17
1
29 Hash it!   4 1628 21.41
9
5
30 Bytelandian Blingors Network   16 1953 34.52
16
9
31 Fast Multiplication   19 2400 14.85
12
13
32 A Needle in the Haystack   58 4237 35.87
12
11
33 Trip   7 860 19.95
27
17
34 Run Away   213 32.89
35 Equipment Box   2 788 13.87
13
21
36 Secret Code   3 169 24.97
17
26
37 The Proper Key   124 22.15
38 Labyrinth   20 2637 23.71
18
17
39 Piggy-Bank   43 4273 32.98
14
15
40 Lifting the Stone   3 1141 21.31
17
21
41 Play on Words   14 1985 17.61
19
23
42 Adding Reversed Numbers   28 33640 48.25
6
5
43 Copying Books   3 1196 25.45
14
24
44 Substitution Cipher   2 288 15.35
17
17
45 Commedia dell Arte   165 39.20
1
17
47 Skyscraper Floors   1 238 13.73
48 Glass Beads   13 2128 35.82
14
16
49 Hares and Foxes   96 10.98
50 Invitation Cards   8 717 38.55
17
17
51 Fake tournament   17 935 23.08
13
16
54 Julka   47 12200 28.25
18
5

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