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list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
41224 Skarbonka   9 13.64
761 Minesweeper   50 40.38
41045 Obrazy i pokoje - Rooms and Pictures   10 15.00
41043 Odwracanie kartek - Pages reading   10 17.54
41046 Kalibracja lasera - Laser calibration   11 46.15
41047 Wieża z wiader - Bucket tower   14 18.56
12845 Minimum knight moves Challenge   3 343 72.13
34
17
3880 Nop   1 607 49.87
1
1
7480 Nth Prime   4 618 45.56
26
12
8315 Number to Word   1 227 42.39
34
1
219 Pawns Gone Wild   23 60.70
12874 Pell Fourth   2 13 66.13
17
34
8676 Digits of Phi (Golden Ratio)   2 293 53.66
17
17
11975 PIEK   182 92.21
34
42
270 Digits of Pi   13 5870 71.27
9
19
4246 Place the Numbers II   1 540 66.32
1
1
8733 Summing up Last digits   31 72.01
5842 Polybius square   2 1026 59.23
34
12
19558 PPrimes   3 131 57.25
21
12
919 Prime checker   10 1620 65.43
15
28
8405 Printf Parser   55 53.73
9
9
218 Points on a Sphere   1 188 67.53
17
26
1481 Yet another computer network problem   23 66.75
34
19206 Power Sum   39 52.92
19397 Fibonacci Power Sum   17 56.02
11689 Real Roots   1 34 94.29
50
50
4163 Relative Board   6 38.10
7105 Reverse the Input   3 544 34.48
28
12
755 Rectangles in a Square   1 31 63.51
17
34
27841 Sabotage   2 30 56.37
34
34
240 Santa Claus and the Presents   121 73.44
12655 Strongly Connected Chemicals   5 100.00
27840 Seedlings   34 74.92
3099 Super Quine   1 84 19.38
2732 Attack A Single Test File!   1 3 40.74
34
34
378 Size Contest   21 10752 55.90
6
1
1492 Lexicographic sort   4 458 50.44
17
9
126 Solovay-Strassen Inverted   101 57.57
155 Solving the Puzzle   2 12 5.07
34
17
2824 Glenbow Museum   3 33.33
13872 The SPP constant challenge   19 61.46
6295 Area Difference   2 388 44.61
6
5
1423 Digits of SQRT(2)   6 2737 67.39
11
11
1414 SuDoku Puzzle   5 432 53.73
30
21
18931 Sum of primes   4 55 25.24
23
28
11746 Sum the Series   7 1864 58.88
6
13
15619 Optimal Swap Sort   9 43.29
525 Fractions Calculator   53 41.53
9380 Connecting three towns   2 122 81.08
1
17
16509 Divisors   1 55 61.23
1
34

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