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list of challenge problems


S ID NAME QUALITY USERS ACC % DIFFICULTY C I
53 Kamil   28 6444 49.30
6
5
72 Food Shortage in Byteland   275 54.35
126 Solovay-Strassen Inverted   108 54.87
127 Johnny Goes Shopping   9 1542 65.85
20
24
155 Solving the Puzzle   2 14 4.69
34
17
218 Points on a Sphere   1 202 67.51
17
26
219 Pawns Gone Wild   28 57.81
222 The Burning City   48 55.13
225 Nightmare in the Towers of Hanoi   24 42.75
232 Bytelandian Telecom   43 67.96
240 Santa Claus and the Presents   1 129 73.47
17
34
246 Plant a Christmas Tree   89 43.11
270 Digits of Pi   13 5925 71.10
9
19
276 Herdkeeper   1 55 65.86
17
17
285 Atomic Shelters   1 127 62.64
17
17
289 The Turing Music Box   73 68.06
294 Johnny and the Optimisation of Homework   17 44.34
295 Bytelandian Origami   1 30 62.09
17
34
298 Closing down Railway Lines   3 135 83.36
26
17
313 The Game of Crosses & Crosses   33 73.41
314 Digits of e   5 3035 60.11
3
3
315 The Secret Fellowship of Byteland   1 49 67.88
34
34
316 Japan Crossword   1 164 68.20
34
34
317 Simple Image Recognition   3 324 73.16
17
26
321 X-Words   1 22 64.10
34
17
326 Enjoying a Multiplayer Game   23 67.79
353 Displace   1 46 46.38
34
17
356 Tethering the Mammoths   15 73.80
378 Size Contest   21 10845 55.93
6
1
525 Fractions Calculator   54 41.07
528 Shortest Superstring   4 178 47.96
28
34
755 Rectangles in a Square   1 33 59.65
17
34
756 Literature List   65 67.95
758 Tetris AI   74 77.71
759 Hard Image Recognition   22 67.22
761 Minesweeper   70 39.42
919 Prime checker   10 1629 65.35
15
28
1414 SuDoku Puzzle   5 442 54.05
27
21
1416 Electrification   39 39.32
1422 Digital Image Processing   2 127 74.65
34
34
1423 Digits of SQRT(2)   6 2763 67.12
11
11
1481 Yet another computer network problem   30 66.67
34
1492 Lexicographic sort   4 596 53.28
17
9
1558 Math II   40 73.32
1690 Intercept   44 32.02
1711 Greatest Common Divisor   117 31.14
1742 Brainf_ck   75 36.71
2004 Analyse Simple Arithmetical Expressions   1 725 50.93
17
1
2471 Magic Program II   1 68 35.40
17
17
2624 JawBreaker Game   1 87 60.95
26
26

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