list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
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 29.70
50
50
14530 Quadratic primes   1 12 56.77
14808 Discrete Math Problem (shorten)   1 26 58.86
34
34
16509 Divisors   1 55 61.42
1
34
17820 Guess The Number With Lies v5   1 74 72.71
50
50
18837 Boring Factorials (Ultimate)   1 25 49.60
34
34
19205 Modular Bernoulli   1 7 48.25
50
50
22217 Help Santa Claus to Pack the Toys   1 5 64.75
34
34
26321 God Number is 20 (Rubik)   1 25 65.85
34
1
26800 Lawnmower   1 51 65.97
17
1
30830 128bit-Fibonacci   1 24 42.94
34316 Chess Variants Showdown   1 1 47.22
34
34
34317 Materializer   1 11 42.84
17
17
41043 Odwracanie kartek - Pages reading   1 19 27.27
1
34
41224 Skarbonka   1 25 25.74
1
1
155 Solving the Puzzle   2 12 4.50
34
17
1422 Digital Image Processing   2 126 74.62
34
34
4760 Primes in Brainf##k   2 139 66.30
17
6
5842 Polybius square   2 1031 59.26
34
12
6125 Dos Date   2 793 55.86
17
6
6295 Area Difference   2 394 44.67
6
5
8473 PATHS   2 308 45.04
30
5
8675 Equation Check   2 267 57.35
1
6
9380 Connecting three towns   2 125 81.06
1
17
11719 The dojo s corridor   2 74 64.76
26
34
11849 A Very Easy Problem! (Challenge Mode)   2 84 50.48
42
9
12874 Pell Fourth   2 13 58.02
17
34
13929 Matrix Exponentiation   2 84 49.63
23
23
19920 Strchr in BF   2 9 69.81
26
17
26801 Hieroglyphs   2 25 58.05
42
34
27841 Sabotage   2 32 55.07
34
34
298 Closing down Railway Lines   3 134 83.36
26
17
317 Simple Image Recognition   3 322 73.13
17
26
7105 Reverse the Input   3 549 34.63
28
12
7225 Word To Number   3 159 60.48
12
6
8676 Digits of Phi (Golden Ratio)   3 296 53.42
9
9
10295 HQNP Incomputable Hard   3 61 76.53
21
38
12845 Minimum knight moves Challenge   3 346 72.09
34
17
15036 Automatic Brainf##k Code Generator (Shortening AI)   3 94 51.85
26
17
19558 PPrimes   3 131 57.23
21
12
31757 Hamster   3 18 61.11
26
26
528 Shortest Superstring   4 176 48.04
28
34
1492 Lexicographic sort   4 580 52.98
17
9
7480 Nth Prime   4 621 45.61
26
12
8102 Christmas Tree   4 832 66.29
5
5
11445 EASY MATH (Challenge)   4 177 46.12
17
17
18931 Sum of primes   4 58 25.30
23
28

Most popular tags