list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
53 Kamil   13 5500 49.37
9
6
72 Food Shortage in Byteland   226 55.41
126 Solovay-Strassen Inverted   95 56.59
127 Johnny Goes Shopping   6 1257 64.03
21
21
155 Solving the Puzzle   10 5.86
218 Points on a Sphere   1 174 66.99
17
17
219 Pawns Gone Wild   21 60.89
222 The Burning City   42 55.56
225 Nightmare in the Towers of Hanoi   18 52.40
232 Bytelandian Telecom   42 68.37
240 Santa Claus and the Presents   112 73.84
246 Plant a Christmas Tree   88 46.15
270 Digits of Pi   5 5112 71.50
13
17
276 Herdkeeper   48 68.62
285 Atomic Shelters   115 61.93
289 The Turing Music Box   72 69.84
294 Johnny and the Optimisation of Homework   15 42.91
295 Bytelandian Origami   26 61.83
298 Closing down Railway Lines   24 90.88
313 The Game of Crosses & Crosses   26 75.45
314 Digits of e   2566 57.68
1
1
315 The Secret Fellowship of Byteland   45 67.98
316 Japan Crossword   141 68.14
317 Simple Image Recognition   2 291 72.87
17
17
321 X-Words   16 68.33
326 Enjoying a Multiplayer Game   17 71.76
353 Displace   41 47.52
356 Tethering the Mammoths   11 82.39
378 Size Contest   12 9468 54.97
10
2
525 Fractions Calculator   48 41.81
528 Shortest Superstring   2 149 49.08
50
34
755 Rectangles in a Square   29 57.42
756 Literature List   63 67.64
758 Tetris AI   69 77.94
759 Hard Image Recognition   12 48.05
761 Minesweeper   49 40.59
919 Prime checker   7 1487 65.22
10
29
1414 SuDoku Puzzle   2 381 53.69
34
34
1416 Electrification   34 38.07
1422 Digital Image Processing   2 112 71.66
34
34
1423 Digits of SQRT(2)   3 2442 66.85
12
6
1481 Yet another computer network problem   21 66.76
1492 Lexicographic sort   2 325 52.40
17
17
1558 Math II   34 72.35
1690 Intercept   40 30.99
1711 Greatest Common Divisor   102 32.31
1742 Brainf_ck   70 36.63
2004 Analyse Simple Arithmetical Expressions   675 51.69
2471 Magic Program II   1 63 36.17
17
17
2624 JawBreaker Game   26 39.58

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