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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
25 Pouring water   100 5583 24.42
19
22
24 Small factorials   154 51408 29.64
15
9
23 Pyramids   -19 5734 36.68
9
15
22 Triangle From Centroid   10 2707 45.19
8
20
20 The Bytelandian Cryptographer (Act IV)   2 60 25.77
21
34
19 The Bytelandian Cryptographer (Act III)   1 129 34.05
17
26
18 The Bytelandian Cryptographer (Act II)   4 666 28.33
25
1
17 The Bytelandian Cryptographer (Act I)   9 1391 41.45
15
26
16 Sphere in a tetrahedron   12 3552 55.22
11
16
15 The Shortest Path   157 7721 24.06
17
12
14 I-Keyboard   8 1310 42.74
24
21
13 Hotline   2 215 16.15
34
23
12 The Game of Master-Mind   1 793 44.12
17
17
11 Factorial   175 60684 45.14
6
12
10 Complicated Expressions   11 1581 31.63
17
17
9 Direct Visibility   4 267 11.65
30
21
8 Complete the Sequence!   32 4520 36.74
16
18
7 The Bulk!   6 534 14.90
30
24
6 Simple Arithmetics   12 3080 11.98
30
9
5 The Next Palindrome   452 20703 10.82
25
18
4 Transform the Expression   258 44366 49.46
12
11
3 Substring Check (Bug Funny)   9 1083 6.98
40
15
2 Prime Generator   630 83182 16.31
15
14
1 Life, the Universe, and Everything   304 223418 33.17
4
3

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