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list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
53 Kamil   26 6410 49.29
7
5
72 Food Shortage in Byteland   263 54.40
126 Solovay-Strassen Inverted   103 56.55
127 Johnny Goes Shopping   9 1521 65.82
20
24
155 Solving the Puzzle   2 12 4.85
34
17
218 Points on a Sphere   1 193 67.60
17
26
219 Pawns Gone Wild   25 58.70
222 The Burning City   44 55.64
225 Nightmare in the Towers of Hanoi   20 43.35
232 Bytelandian Telecom   43 67.05
240 Santa Claus and the Presents   1 125 73.46
17
34
246 Plant a Christmas Tree   90 43.42
270 Digits of Pi   13 5905 71.15
9
19
276 Herdkeeper   51 68.04
285 Atomic Shelters   1 123 62.60
17
17
289 The Turing Music Box   73 68.95
294 Johnny and the Optimisation of Homework   16 45.43
295 Bytelandian Origami   1 28 62.02
17
34
298 Closing down Railway Lines   3 134 83.36
26
17
313 The Game of Crosses & Crosses   29 73.14
314 Digits of e   5 3020 60.17
3
3
315 The Secret Fellowship of Byteland   1 48 68.80
34
34
316 Japan Crossword   1 160 68.23
34
34
317 Simple Image Recognition   3 322 73.01
17
26
321 X-Words   1 19 64.15
34
17
326 Enjoying a Multiplayer Game   19 66.43
353 Displace   1 44 46.70
34
17
356 Tethering the Mammoths   12 75.43
378 Size Contest   21 10816 55.91
6
1
525 Fractions Calculator   54 41.24
528 Shortest Superstring   4 175 48.03
28
34
755 Rectangles in a Square   1 31 59.82
17
34
756 Literature List   65 67.95
758 Tetris AI   74 77.77
759 Hard Image Recognition   19 67.38
761 Minesweeper   52 40.48
919 Prime checker   10 1625 65.39
15
28
1414 SuDoku Puzzle   5 438 54.00
27
21
1416 Electrification   37 38.42
1422 Digital Image Processing   2 125 74.60
34
34
1423 Digits of SQRT(2)   6 2752 67.36
11
11
1481 Yet another computer network problem   26 66.67
34
1492 Lexicographic sort   4 528 51.70
17
9
1558 Math II   38 73.37
1690 Intercept   42 31.58
1711 Greatest Common Divisor   109 31.06
1742 Brainf_ck   73 36.25
2004 Analyse Simple Arithmetical Expressions   1 724 51.20
17
1
2471 Magic Program II   1 68 35.60
17
17
2624 JawBreaker Game   1 86 61.06
26
26

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