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 ...

Given a string S. The task is to print all unique permutations of the given string in lexicographically sorted order ...

The permutations of a single-letter string is a set of one element, the single-letter string.