1. Classical
  2. Challenge
  3. Partial
  4. Tutorial
  5. Riddle
  6. Basics

list of challenge problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
11410 Find New SPOJ Problems   8 42.96
11445 EASY MATH (Challenge)   2 155 45.86
17
17
11451 Aritho-geometric Series (AGS) (Challenge)   1 55 47.17
17
17
11462 Fun with Fibonacci Series (Challenge)   1 288 34.35
17
17
11689 Real Roots   1 34 94.29
50
50
11719 The dojo s corridor   2 71 64.41
26
34
11746 Sum the Series   7 1864 58.88
6
13
11790 Size Contest!!!Reloaded!!   1 347 38.70
9
1
11793 Cartesian Shortest Path   52 44.15
11815 Tiling a WxH Grid With Dominoes   41 54.16
34
17
11849 A Very Easy Problem! (Challenge Mode)   2 80 50.79
42
9
11975 PIEK   182 92.21
34
42
12393 Enigma Machine   1 21 56.90
12655 Strongly Connected Chemicals   5 100.00
12845 Minimum knight moves Challenge   3 343 72.13
34
17
12874 Pell Fourth   2 13 66.13
17
34
12919 Man of Steel   1 25 67.46
17
34
12996 Wow Square   125 55.34
13366 TWO KINGS   17 62.42
13418 Fibonacci factorization   1 10 30.60
50
50
13423 64bit-Fibonacci   6 149 43.78
38
34
13872 The SPP constant challenge   19 61.46
13929 Matrix Exponentiation   2 83 50.66
23
23
14530 Quadratic primes   1 10 63.31
15036 Automatic Brainf##k Code Generator (Shortening AI)   3 92 51.86
26
17
15619 Optimal Swap Sort   9 43.29
15673 Alice and Bob plays again   14 67.01
16509 Divisors   1 55 61.23
1
34
17257 Guess The Number With Lies v1   31 47.29
17308 Guess The Number With Lies v2   68 54.30
17598 Guess The Number With Lies v4   13 63.16
17820 Guess The Number With Lies v5   1 72 72.66
50
50
17867 Tone Transposition   5 66.36
18073 Colour Brick Game   53 88.66
18837 Boring Factorials (Ultimate)   1 24 49.45
34
34
18901 The Secret Recipe   45 77.84
18931 Sum of primes   4 55 25.24
23
28
19205 Modular Bernoulli   6 67.21
19206 Power Sum   39 52.92
19397 Fibonacci Power Sum   17 56.02
19558 PPrimes   3 131 57.25
21
12
19972 Counting triangles 2   9 52.94
20651 Reliability of Logic Circuits   49 66.56
50
50
22217 Help Santa Claus to Pack the Toys   1 5 66.74
34
34
22717 Kejriwal And Broom   6 300 56.92
1
4
22733 AAP Volunteers   10 63.64
22734 Mr Phoenix And OR Operation   6 52.17
22739 Majority Party   9 53.95
26321 God Number is 20 (Rubik)   1 25 65.86
34
1
26800 Lawnmower   1 49 66.11
17
1

Most popular tags




© Spoj.com. All Rights Reserved. Spoj uses Sphere Engine™ © by Sphere Research Labs.