摘要：
Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest pa... 阅读全文
摘要：
Write a function to find the longest common prefix string amongst an array of strings.解法：从所有的string的头到尾的字母逐一比较即可。class Solution {public: string lon... 阅读全文