ID NAME QUALITY USERS ACC % DIFFICULTY C I
32840 Ada and Digits   11 71
20
17
1704 Countdown   1 289
26
9
18297 Problem4   18 473
19
20
18298 Problem5   6 383
12
10
56 Dyzio   5 998
15
15
27182 Easy modified sudoku   4 193
17
12
1790 Binary Search Heap Construction   3 269
21
24
31 Fast Multiplication   38 4353
14
13
25 Pouring water   72 3705
18
21
2047 Stone Removing Game   -1 124
339 Recursive Sequence   42 1929
17
14
479 Permutation generator   117
17
17
738 Another Counting Problem   217
5885 Troops of Sand Monsters   2 103
17
17

#recursion

Recursion is a method where the solution to a problem depends on solutions to smaller instances of the same problem

https://en.wikipedia.org/wiki/Recursion_(computer_science) https://en.wikipedia.org/wiki/Recursion - as a general term https://www.khanacademy.org/computing/computer-science/algorithms/recursive-algorithms/a/recursion http://learnyouahaskell.com/recursion - recursion in Haskell