摘要：
Question:Implement strStr().Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.Analysis:实现strStr... 阅读全文
摘要：
Question:Write a function to find the longest common prefix string amongst an array of strings.Analysis:写一个函数找到一个字符串数组的最长公共前缀。思路：依次两两比较，用短的前缀更新比较长的前缀，... 阅读全文