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list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
11462 Fun with Fibonacci Series (Challenge)   1 288 34.35
17
17
11689 Real Roots   1 34 94.29
50
50
11790 Size Contest!!!Reloaded!!   1 347 38.70
9
1
12393 Enigma Machine   1 21 56.90
12919 Man of Steel   1 25 67.46
17
34
13083 "If Bigger than" in BF   1 25 64.32
17
17
13175 "a mod b" in BF   1 14 63.33
50
17
13418 Fibonacci factorization   1 10 30.60
50
50
14530 Quadratic primes   1 10 63.31
14808 Discrete Math Problem (shorten)   1 24 58.99
34
34
16509 Divisors   1 55 61.23
1
34
17820 Guess The Number With Lies v5   1 72 72.66
50
50
18837 Boring Factorials (Ultimate)   1 24 49.45
34
34
22217 Help Santa Claus to Pack the Toys   1 5 66.74
34
34
26321 God Number is 20 (Rubik)   1 25 65.86
34
1
26800 Lawnmower   1 49 66.11
17
1
30830 128bit-Fibonacci   1 24 43.87
34316 Chess Variants Showdown   1 1 70.25
34
34
34317 Materializer   1 10 42.78
17
17
155 Solving the Puzzle   2 12 5.07
34
17
1422 Digital Image Processing   2 121 74.53
34
34
4760 Primes in Brainf##k   2 139 66.30
17
6
5842 Polybius square   2 1027 59.23
34
12
6125 Dos Date   2 788 55.80
17
6
6295 Area Difference   2 388 44.61
6
5
7225 Word To Number   2 156 61.22
17
9
8473 PATHS   2 308 44.95
30
5
8676 Digits of Phi (Golden Ratio)   2 293 53.67
17
17
9380 Connecting three towns   2 122 81.08
1
17
11445 EASY MATH (Challenge)   2 156 45.90
17
17
11719 The dojo s corridor   2 71 64.41
26
34
11849 A Very Easy Problem! (Challenge Mode)   2 80 50.79
42
9
12874 Pell Fourth   2 13 66.13
17
34
13929 Matrix Exponentiation   2 83 50.66
23
23
19920 Strchr in BF   2 9 72.55
26
17
26801 Hieroglyphs   2 23 58.21
42
34
27841 Sabotage   2 30 56.37
34
34
298 Closing down Railway Lines   3 131 83.37
26
17
317 Simple Image Recognition   3 317 72.56
17
26
7105 Reverse the Input   3 544 34.48
28
12
10295 HQNP Incomputable Hard   3 61 76.49
21
38
12845 Minimum knight moves Challenge   3 344 72.10
34
17
15036 Automatic Brainf##k Code Generator (Shortening AI)   3 92 51.86
26
17
19558 PPrimes   3 131 57.25
21
12
31757 Hamster   3 15 62.24
26
26
528 Shortest Superstring   4 174 48.18
28
34
1492 Lexicographic sort   4 470 51.01
17
9
7480 Nth Prime   4 618 45.56
26
12
8102 Christmas Tree   4 826 66.24
5
5
18931 Sum of primes   4 55 25.24
23
28

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