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list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
53 Kamil   26 6391 49.34
7
5
72 Food Shortage in Byteland   263 54.71
126 Solovay-Strassen Inverted   102 57.32
127 Johnny Goes Shopping   9 1509 65.84
20
24
155 Solving the Puzzle   2 12 5.05
34
17
218 Points on a Sphere   1 191 67.57
17
26
219 Pawns Gone Wild   24 60.87
222 The Burning City   43 58.65
225 Nightmare in the Towers of Hanoi   19 46.82
232 Bytelandian Telecom   42 68.25
240 Santa Claus and the Presents   1 124 73.46
17
34
246 Plant a Christmas Tree   88 43.20
270 Digits of Pi   13 5895 71.19
9
19
276 Herdkeeper   50 68.27
285 Atomic Shelters   1 121 62.92
17
17
289 The Turing Music Box   73 68.95
294 Johnny and the Optimisation of Homework   16 45.43
295 Bytelandian Origami   1 27 61.84
17
34
298 Closing down Railway Lines   3 132 83.37
26
17
313 The Game of Crosses & Crosses   29 74.42
314 Digits of e   5 3015 60.20
3
3
315 The Secret Fellowship of Byteland   1 47 69.69
34
34
316 Japan Crossword   1 160 68.28
34
34
317 Simple Image Recognition   3 320 73.11
17
26
321 X-Words   1 19 64.46
34
17
326 Enjoying a Multiplayer Game   18 70.77
353 Displace   1 43 47.08
34
17
356 Tethering the Mammoths   12 80.00
378 Size Contest   21 10794 55.93
6
1
525 Fractions Calculator   53 41.49
528 Shortest Superstring   4 174 48.09
28
34
755 Rectangles in a Square   1 31 62.33
17
34
756 Literature List   65 68.30
758 Tetris AI   74 77.83
759 Hard Image Recognition   17 68.02
761 Minesweeper   50 40.33
919 Prime checker   10 1623 65.40
15
28
1414 SuDoku Puzzle   5 437 54.03
30
21
1416 Electrification   36 38.50
1422 Digital Image Processing   2 122 74.54
34
34
1423 Digits of SQRT(2)   6 2750 67.37
11
11
1481 Yet another computer network problem   23 66.58
34
1492 Lexicographic sort   4 499 50.99
17
9
1558 Math II   36 73.24
1690 Intercept   42 31.73
1711 Greatest Common Divisor   109 31.67
1742 Brainf_ck   71 36.26
2004 Analyse Simple Arithmetical Expressions   1 724 51.29
17
1
2471 Magic Program II   1 68 35.65
17
17
2624 JawBreaker Game   1 86 61.16
26
26

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