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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   263 161504 33.41
3
3
2 Prime Generator   503 55044 15.64
15
14
3 Substring Check (Bug Funny)   5 960 9.92
41
13
4 Transform the Expression   222 32608 49.30
12
11
5 The Next Palindrome   412 15668 10.26
25
18
6 Simple Arithmetics   11 2357 12.32
31
8
7 The Bulk!   4 372 23.28
28
20
8 Complete the Sequence!   28 2626 34.13
16
18
9 Direct Visibility   1 213 16.44
21
26
10 Complicated Expressions   9 796 25.63
16
13
11 Factorial   151 42590 45.86
5
12
12 The Game of Master-Mind   266 43.97
13 Hotline   168 25.62
14 I-Keyboard   4 773 36.78
28
26
15 The Shortest Path   117 5149 23.36
17
12
16 Sphere in a tetrahedron   11 2381 57.76
12
14
17 The Bytelandian Cryptographer (Act I)   8 803 33.44
17
24
18 The Bytelandian Cryptographer (Act II)   4 648 34.71
25
1
19 The Bytelandian Cryptographer (Act III)   1 123 40.84
17
17
20 The Bytelandian Cryptographer (Act IV)   1 47 24.98
28
34
22 Triangle From Centroid   9 1558 44.06
8
21
23 Pyramids   -24 4173 36.17
9
14
24 Small factorials   136 34860 30.27
15
9
25 Pouring water   83 3977 22.67
18
22
26 Build the Fence   35 1790 32.13
22
17
27 Sorting Bank Accounts   46 6534 40.82
11
7
28 Help the Military Recruitment Office!   4 476 13.36
12
6
29 Hash it!   11 2506 22.30
15
6
30 Bytelandian Blingors Network   51 3075 37.93
14
10
31 Fast Multiplication   41 4846 18.50
14
12
32 A Needle in the Haystack   145 7355 38.13
14
13
33 Trip   17 1274 22.48
25
15
34 Run Away   2 275 32.95
26
34
35 Equipment Box   4 929 13.92
9
17
36 Secret Code   6 195 24.31
17
17
37 The Proper Key   1 131 20.22
17
17
38 Labyrinth   80 4420 25.12
18
16
39 Piggy-Bank   126 6318 34.93
14
16
40 Lifting the Stone   6 1335 22.06
14
17
41 Play on Words   38 2568 18.43
21
24
42 Adding Reversed Numbers   84 52392 49.11
6
4
43 Copying Books   32 1846 23.69
19
20
44 Substitution Cipher   2 303 15.20
17
17
45 Commedia dell Arte   203 38.04
1
17
47 Skyscraper Floors   4 261 13.34
26
17
48 Glass Beads   23 2557 37.15
15
17
49 Hares and Foxes   -1 101 10.29
50 Invitation Cards   27 1140 42.36
16
18
51 Fake tournament   39 1319 25.31
17
19
54 Julka   147 17311 27.18
19
6

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