LeetCode各题解法分析~（Java and Python）. Contribute to YutingZ92/LeetCode-1 development by creating an account on GitHub.

Java Solutions to problems on LintCode/LeetCode. Contribute to awangdev/leet-code development by creating an account on GitHub.

A recursive approach (which is what I would use) would involve breaking the problem into isomorphic subproblems: to find all permutations of a string, find all permutations of the string without a ...