2014年10月7日
LeetCode——Reverse Integer（逆置一个整数）
摘要： 问题： Reverse digits of an integer. Example1: x = 123, return 321 Example2: x = -123, return –321 Have you thought about this? Here are some good questions to ask before coding. Bonus p... 阅读全文
posted @ 2014-10-07 18:08 苍枫露雨 阅读(661) 评论(0) 推荐(0)
LeetCode——Same Tree（判断两棵树是否相同）
摘要： 问题： Given two binary trees, write a function to check if they are equal or not. Two binary trees are considered equal if they are structurally identical and the nodes have the same value. 分析： ... 阅读全文
posted @ 2014-10-07 15:39 苍枫露雨 阅读(462) 评论(0) 推荐(0)
LeetCode——Single Number（找出数组中只出现一次的数）
摘要： 问题： Given an array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it without us... 阅读全文
posted @ 2014-10-07 15:28 苍枫露雨 阅读(457) 评论(0) 推荐(0)
LeetCode——Rotate Image（二维数组顺时针旋转90度）
摘要： 问题： You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Follow up: Could you do this in-place? 分析： 二维数组a[n][n]顺时针旋转90度，要解决这个问题，无疑，第一件事儿就... 阅读全文
posted @ 2014-10-07 15:18 苍枫露雨 阅读(9166) 评论(1) 推荐(2)