list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   120 98840 32.97
3
2
2 Prime Generator   197 30957 15.34
18
15
3 Substring Check (Bug Funny)   704 10.86
39
10
4 Transform the Expression   58 20329 49.10
9
11
5 The Next Palindrome   148 10163 9.92
24
20
6 Simple Arithmetics   2 1827 12.28
32
10
7 The Bulk!   3 312 27.81
30
17
8 Complete the Sequence!   12 1836 32.70
17
16
9 Direct Visibility   188 18.12
10 Complicated Expressions   2 652 26.62
17
9
11 Factorial   62 29085 45.63
6
11
12 The Game of Master-Mind   206 43.73
13 Hotline   148 28.72
14 I-Keyboard   3 699 37.30
26
26
15 The Shortest Path   36 2730 21.25
21
13
16 Sphere in a tetrahedron   6 1888 58.21
12
8
17 The Bytelandian Cryptographer (Act I)   5 676 32.28
12
23
18 The Bytelandian Cryptographer (Act II)   591 37.25
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 1298 42.98
9
23
23 Pyramids   -15 3424 37.09
6
13
24 Small factorials   52 23857 30.33
16
10
25 Pouring water   31 2639 20.77
17
19
26 Build the Fence   20 1209 30.48
22
15
27 Sorting Bank Accounts   20 4350 40.55
9
6
28 Help the Military Recruitment Office!   1 369 12.73
17
1
29 Hash it!   4 1654 21.41
11
4
30 Bytelandian Blingors Network   22 2026 34.97
14
8
31 Fast Multiplication   22 2595 15.11
11
11
32 A Needle in the Haystack   68 4462 36.06
13
13
33 Trip   10 904 20.07
26
15
34 Run Away   215 33.04
35 Equipment Box   2 803 13.87
13
21
36 Secret Code   4 174 25.03
17
26
37 The Proper Key   1 125 22.24
17
17
38 Labyrinth   23 2823 24.05
18
17
39 Piggy-Bank   50 4444 33.19
15
15
40 Lifting the Stone   3 1162 21.41
17
21
41 Play on Words   15 2031 17.66
17
21
42 Adding Reversed Numbers   29 34968 48.16
6
5
43 Copying Books   7 1300 25.15
19
23
44 Substitution Cipher   1 293 15.47
17
17
45 Commedia dell Arte   166 39.16
1
17
47 Skyscraper Floors   1 241 13.64
48 Glass Beads   14 2165 35.70
13
15
49 Hares and Foxes   -1 96 10.92
50 Invitation Cards   12 757 38.71
17
19
51 Fake tournament   19 969 23.45
12
16
54 Julka   51 12569 28.10
18
5

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