摘要： 题目：给定一个vector，然后里面有若干个字符串的长度和组成的字母是相同的，找出这些字符串记录并返回。顾名思义，也就是抛弃单一的字符串，单一是指没有和它长度相同并且组成的字母也相同的另一个字符串。原题如下：Given an array of strings, return all groups o... 阅读全文

摘要： 题目：You are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?在原址上进行将矩阵旋转90度。如... 阅读全文

摘要： 题目：Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array represents your max... 阅读全文