摘要：
Problems:Given an array of integers, every element appears twice except for one. Find that single one. Note:Your algorithm should have a linear runtim... 阅读全文
摘要：
Problem:Write a function to find the longest common prefix string amongst an array of strings.Solution:题意要求求取字符串数组的最长公共前缀子串。从位置0开始，对每一个位置比较所有的字符串，直到遇到... 阅读全文