Given a string S. The task is to print all permutations of a given string. You don't need to read input or print anything. Your task is to complete the function find_permutaion() which takes the ...

A permutation also called an “arrangement number” or “order,” is a rearrangement of the elements of an ordered list S into a one-to-one correspondence with S itself. A string of length n has n!

A general method is given for generating random permutations of integers using a table of random sampling numbers and without wasting the random numbers read. This is more convenient in practice, ...