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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   294 205982 32.88
4
3
2 Prime Generator   616 75382 15.92
15
13
3 Substring Check (Bug Funny)   9 1056 8.11
41
15
4 Transform the Expression   257 41804 49.15
12
11
5 The Next Palindrome   450 19691 10.83
25
18
6 Simple Arithmetics   10 2972 12.50
30
9
7 The Bulk!   6 472 16.32
30
24
8 Complete the Sequence!   30 4237 38.16
16
19
9 Direct Visibility   4 242 12.37
30
21
10 Complicated Expressions   11 1508 32.40
16
17
11 Factorial   171 56193 44.98
6
12
12 The Game of Master-Mind   1 711 50.08
17
17
13 Hotline   2 191 16.77
34
23
14 I-Keyboard   6 1227 43.37
24
23
15 The Shortest Path   155 7312 24.09
17
12
16 Sphere in a tetrahedron   12 3432 57.12
11
16
17 The Bytelandian Cryptographer (Act I)   8 1304 41.77
15
26
18 The Bytelandian Cryptographer (Act II)   4 661 30.90
25
1
19 The Bytelandian Cryptographer (Act III)   1 129 38.69
17
26
20 The Bytelandian Cryptographer (Act IV)   2 52 24.53
21
34
22 Triangle From Centroid   10 2565 46.97
9
22
23 Pyramids   -20 5512 37.17
9
15
24 Small factorials   152 47751 29.95
15
9
25 Pouring water   99 5192 24.01
19
22
26 Build the Fence   37 2176 28.60
22
17
27 Sorting Bank Accounts   52 8553 40.62
11
6
28 Help the Military Recruitment Office!   5 757 16.03
13
8
29 Hash it!   14 3464 24.18
15
9
30 Bytelandian Blingors Network   54 3671 38.85
14
10
31 Fast Multiplication   48 8250 20.40
14
12
32 A Needle in the Haystack   191 10558 38.22
15
13
33 Trip   18 1890 25.83
25
16
34 Run Away   2 417 21.16
26
34
35 Equipment Box   6 1259 14.61
7
20
36 Secret Code   6 514 36.51
17
17
37 The Proper Key   1 135 16.08
17
17
38 Labyrinth   97 5248 25.67
17
16
39 Piggy-Bank   139 7986 35.44
14
16
40 Lifting the Stone   6 1563 23.34
13
16
41 Play on Words   42 3163 19.36
21
24
42 Adding Reversed Numbers   102 69986 48.96
6
4
43 Copying Books   43 2660 25.58
20
19
44 Substitution Cipher   2 312 13.57
17
17
45 Commedia dell Arte   1 231 34.83
6
23
47 Skyscraper Floors   5 276 12.81
26
17
48 Glass Beads   27 3297 37.61
15
17
49 Hares and Foxes   1 106 8.38
17
26
50 Invitation Cards   29 1671 43.36
16
18
51 Fake tournament   41 1743 27.19
18
20
54 Julka   160 22368 27.38
19
6

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