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list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
11410 Find New SPOJ Problems   8 42.07
11445 EASY MATH (Challenge)   4 177 46.12
17
17
11689 Real Roots   1 44 92.48
50
50
11719 The dojo s corridor   2 74 64.76
26
34
11746 Sum the Series   7 1941 58.80
6
13
11790 Size Contest!!!Reloaded!!   1 350 38.74
9
1
11793 Cartesian Shortest Path   55 44.59
11815 Tiling a WxH Grid With Dominoes   42 54.15
34
17
11849 A Very Easy Problem! (Challenge Mode)   2 84 50.48
42
9
11975 PIEK   183 92.17
34
42
12393 Enigma Machine   1 23 56.92
12655 Strongly Connected Chemicals   13 95.45
12845 Minimum knight moves Challenge   3 346 72.09
34
17
12874 Pell Fourth   2 13 58.02
17
34
12919 Man of Steel   1 25 67.46
17
34
12996 Wow Square   127 54.73
13366 TWO KINGS   19 58.15
13418 Fibonacci factorization   1 10 29.70
50
50
13423 64bit-Fibonacci   6 152 43.84
38
34
13872 The SPP constant challenge   19 58.93
13929 Matrix Exponentiation   2 84 49.63
23
23
14530 Quadratic primes   1 12 56.77
15036 Automatic Brainf##k Code Generator (Shortening AI)   3 94 51.85
26
17
15619 Optimal Swap Sort   11 39.25
15673 Alice and Bob plays again   16 66.99
16509 Divisors   1 55 61.42
1
34
17257 Guess The Number With Lies v1   33 47.13
17308 Guess The Number With Lies v2   70 54.29
17598 Guess The Number With Lies v4   15 63.79
17820 Guess The Number With Lies v5   1 74 72.71
50
50
17867 Tone Transposition   7 66.96
18073 Colour Brick Game   55 88.65
18837 Boring Factorials (Ultimate)   1 25 49.60
34
34
18901 The Secret Recipe   45 77.51
18931 Sum of primes   4 58 25.30
23
28
19205 Modular Bernoulli   1 7 48.25
50
50
19206 Power Sum   39 52.22
19397 Fibonacci Power Sum   17 51.88
19558 PPrimes   3 131 57.23
21
12
19972 Counting triangles 2   9 47.76
20651 Reliability of Logic Circuits   49 66.56
50
50
22217 Help Santa Claus to Pack the Toys   1 5 64.75
34
34
22717 Kejriwal And Broom   6 303 56.95
1
4
22733 AAP Volunteers   10 63.64
22734 Mr Phoenix And OR Operation   6 50.73
22739 Majority Party   9 53.95
26321 God Number is 20 (Rubik)   1 25 65.85
34
1
26800 Lawnmower   1 51 65.97
17
1
26801 Hieroglyphs   2 25 58.05
42
34
27840 Seedlings   34 73.36

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