## Challenges - Permutation ChallengeString Permutation Challenge Here is another mathematical problem, where the trick is as much to discover the algorithm as it is to write the code: write a program to display all possible permutations of a given input string--if the string contains duplicate characters, you may have multiple repeated results. Input should be of the form permuteand output should be a word per line. Here is a sample for the input cat cta act atc tac tca |