list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
53 Kamil   22 6151 49.56
7
5
72 Food Shortage in Byteland   241 55.44
126 Solovay-Strassen Inverted   100 57.64
127 Johnny Goes Shopping   9 1419 65.73
20
24
155 Solving the Puzzle   1 11 5.07
34
17
218 Points on a Sphere   2 181 67.23
17
26
219 Pawns Gone Wild   22 61.06
222 The Burning City   43 59.72
225 Nightmare in the Towers of Hanoi   18 51.08
232 Bytelandian Telecom   43 68.42
240 Santa Claus and the Presents   119 73.47
246 Plant a Christmas Tree   88 45.08
270 Digits of Pi   12 5674 71.56
9
19
276 Herdkeeper   49 68.35
285 Atomic Shelters   119 61.67
289 The Turing Music Box   72 69.28
294 Johnny and the Optimisation of Homework   15 42.61
295 Bytelandian Origami   26 61.83
298 Closing down Railway Lines   3 131 83.38
26
17
313 The Game of Crosses & Crosses   26 75.45
314 Digits of e   3 2887 59.11
1
1
315 The Secret Fellowship of Byteland   45 68.14
316 Japan Crossword   154 68.28
317 Simple Image Recognition   2 304 72.65
17
17
321 X-Words   17 63.17
326 Enjoying a Multiplayer Game   18 71.88
353 Displace   1 42 46.65
34
17
356 Tethering the Mammoths   11 82.39
378 Size Contest   17 10494 55.78
7
1
525 Fractions Calculator   52 41.62
528 Shortest Superstring   3 171 47.90
34
34
755 Rectangles in a Square   29 57.05
756 Literature List   64 68.05
758 Tetris AI   73 77.84
759 Hard Image Recognition   17 67.97
761 Minesweeper   49 40.33
919 Prime checker   10 1582 65.43
10
29
1414 SuDoku Puzzle   4 408 53.73
28
23
1416 Electrification   35 38.19
1422 Digital Image Processing   2 119 74.52
34
34
1423 Digits of SQRT(2)   5 2660 67.33
13
13
1481 Yet another computer network problem   23 66.93
34
1492 Lexicographic sort   3 363 51.09
17
9
1558 Math II   35 72.56
1690 Intercept   41 31.20
1711 Greatest Common Divisor   105 31.11
1742 Brainf_ck   71 36.86
2004 Analyse Simple Arithmetical Expressions   1 720 51.69
17
1
2471 Magic Program II   1 67 35.77
17
17
2624 JawBreaker Game   1 85 61.15
26
26

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