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list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
17257 Guess The Number With Lies v1   31 47.29
8950 Grid points   44 57.73
1711 Greatest Common Divisor   108 31.68
13172 Good   -1 24 71.23
26321 God Number is 20 (Rubik)   1 25 65.86
34
1
2824 Glenbow Museum   3 33.33
11462 Fun with Fibonacci Series (Challenge)   1 288 34.35
17
17
6646 Fully Parenthesized Expression   26 43.75
525 Fractions Calculator   53 41.53
13923 Fractionated morse cipher   10 64.83
72 Food Shortage in Byteland   260 54.90
11410 Find New SPOJ Problems   8 42.96
11397 Find all independent nodes   23 89.23
19397 Fibonacci Power Sum   17 56.02
13418 Fibonacci factorization   1 10 30.60
50
50
8675 Equation Check   1 262 57.52
1
9
326 Enjoying a Multiplayer Game   18 71.32
12393 Enigma Machine   1 21 56.90
1416 Electrification   35 38.19
11445 EASY MATH (Challenge)   2 156 45.90
17
17
6125 Dos Date   2 788 55.80
17
6
16509 Divisors   1 55 61.23
1
34
8672 Distributing the balls   26 32.73
353 Displace   1 43 47.08
34
17
14808 Discrete Math Problem (shorten)   1 24 58.99
34
34
2729 Discover   2 8.20
1423 Digits of SQRT(2)   6 2737 67.39
11
11
270 Digits of Pi   13 5871 71.27
9
19
8676 Digits of Phi (Golden Ratio)   2 293 53.67
17
17
314 Digits of e   5 2997 59.55
3
3
1422 Digital Image Processing   2 121 74.53
34
34
7063 Cycles, More Cycles   16 83.43
19972 Counting triangles 2   9 52.94
9380 Connecting three towns   2 122 81.08
1
17
18073 Colour Brick Game   53 88.66
298 Closing down Railway Lines   3 131 83.37
26
17
8102 Christmas Tree   4 826 66.24
5
5
34316 Chess Variants Showdown   1 1 70.25
34
34
11793 Cartesian Shortest Path   52 44.15
2659 Carl   70 39.22
232 Bytelandian Telecom   42 68.25
295 Bytelandian Origami   1 27 61.84
17
34
6173 Burned Pancakes Tower   1 23 64.61
17
17
1742 Brainf_ck   70 36.24
3947 Brainf F##k Writing   9 1498 74.48
23
3
18837 Boring Factorials (Ultimate)   1 24 49.45
34
34
8579 BF_MODULUS   9 47.15
15036 Automatic Brainf##k Code Generator (Shortening AI)   3 92 51.86
26
17
2732 Attack A Single Test File!   1 3 40.74
34
34
285 Atomic Shelters   1 121 63.05
17
17

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