摘要： Given an arraySofnintegers, are there elementsa,b,cinSsuch thata+b+c= 0? Find all unique triplets in the array which gives the sum of zero.Note:Elemen... 阅读全文

摘要： Write a function to find the longest common prefix string amongst an array of strings.本题寻找一组字符串的公共前缀，只需要查询较短子串前n个字符是否相等。时间：8ms代码如下：class Solution {pub... 阅读全文