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list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
53 Kamil   27 6423 49.28
7
5
72 Food Shortage in Byteland   269 54.37
126 Solovay-Strassen Inverted   104 54.94
127 Johnny Goes Shopping   9 1527 65.85
20
24
155 Solving the Puzzle   2 12 4.50
34
17
218 Points on a Sphere   1 196 67.64
17
26
219 Pawns Gone Wild   26 58.40
222 The Burning City   46 55.29
225 Nightmare in the Towers of Hanoi   22 42.53
232 Bytelandian Telecom   43 67.96
240 Santa Claus and the Presents   1 126 73.44
17
34
276 Herdkeeper   53 67.09
285 Atomic Shelters   1 125 62.66
17
17
289 The Turing Music Box   73 68.95
294 Johnny and the Optimisation of Homework   16 44.44
295 Bytelandian Origami   1 30 62.09
17
34
298 Closing down Railway Lines   3 134 83.36
26
17
313 The Game of Crosses & Crosses   32 73.31
315 The Secret Fellowship of Byteland   1 48 67.65
34
34
316 Japan Crossword   1 163 68.20
34
34
321 X-Words   1 22 64.10
34
17
326 Enjoying a Multiplayer Game   21 67.35
353 Displace   1 45 46.77
34
17
525 Fractions Calculator   54 41.07
528 Shortest Superstring   4 176 48.04
28
34
919 Prime checker   10 1627 65.38
15
28
1711 Greatest Common Divisor   113 30.87
1742 Brainf_ck   73 36.25
2624 JawBreaker Game   1 86 60.96
26
26
4246 Place the Numbers II   1 546 66.49
1
1
5842 Polybius square   2 1031 59.26
34
12
6125 Dos Date   2 793 55.86
17
6
6173 Burned Pancakes Tower   1 25 61.47
17
17
6295 Area Difference   2 394 44.67
6
5
6646 Fully Parenthesized Expression   26 43.75
7063 Cycles, More Cycles   21 82.50
7105 Reverse the Input   3 549 34.63
28
12
7225 Word To Number   3 159 60.48
12
6
7480 Nth Prime   4 621 45.61
26
12
7958 Prisoner of Benda (Challenge)   1 18 44.57
34
34
8102 Christmas Tree   4 832 66.29
5
5
8638 Sum of Fibonacci numbers   1 137 73.02
50
34
8672 Distributing the balls   28 33.54
8675 Equation Check   2 267 57.35
1
6
8676 Digits of Phi (Golden Ratio)   3 296 53.42
9
9
8733 Summing up Last digits   31 61.86
8950 Grid points   46 58.06
9380 Connecting three towns   2 125 81.06
1
17
10295 HQNP Incomputable Hard   3 61 76.53
21
38
11397 Find all independent nodes   26 89.36

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