2014年7月11日
【leetcode】Palindrome Number
摘要： Determine whether an integer is a palindrome. Do this without extra space.Some hints:Could negative integers be palindromes? (ie, -1)If you are thinki... 阅读全文
posted @ 2014-07-11 19:55 SunshineAtNoon 阅读(207) 评论(0) 推荐(0)
【leetcode】Binary Tree Maximum Path Sum
摘要： Given a binary tree, find the maximum path sum.The path may start and end at any node in the tree.For example:Given the below binary tree, 1 ... 阅读全文
posted @ 2014-07-11 16:51 SunshineAtNoon 阅读(229) 评论(0) 推荐(0)
【leetcode刷题笔记】Max Points on a Line
摘要： Givennpoints on a 2D plane, find the maximum number of points that lie on the same straight line.题解：思路比较简单，每条直线都可以表示为y=kx+b，所以对于任意三点，如果它们共线，那么它们中任意两点的... 阅读全文
posted @ 2014-07-11 12:13 SunshineAtNoon 阅读(273) 评论(0) 推荐(0)