2014年6月9日
【leetcode】Symmetric Tree
摘要： Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).For example, this binary tree is symmetric: 1 / \ ... 阅读全文
posted @ 2014-06-09 23:40 SunshineAtNoon 阅读(157) 评论(0) 推荐(0)
【leetcode】Balanced Binary Tree
摘要： Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tree in which the depth... 阅读全文
posted @ 2014-06-09 21:00 SunshineAtNoon 阅读(181) 评论(0) 推荐(0)
【leetcode】Climbing Stairs
摘要： You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb... 阅读全文
posted @ 2014-06-09 20:58 SunshineAtNoon 阅读(193) 评论(0) 推荐(0)
【leetcode】Merge Two Sorted Lists
摘要： Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.水题不解释，一A，... 阅读全文
posted @ 2014-06-09 20:39 SunshineAtNoon 阅读(167) 评论(0) 推荐(0)
【leetcode】Remove Element
摘要： Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be changed. It doesn't mat... 阅读全文
posted @ 2014-06-09 20:30 SunshineAtNoon 阅读(193) 评论(0) 推荐(0)
【leetcode】Maximum Subarray
摘要： Find the contiguous subarray within an array (containing at least one number) which has the largest sum.For example, given the array[−2,1,−3,4,−1,2,1,... 阅读全文
posted @ 2014-06-09 19:41 SunshineAtNoon 阅读(142) 评论(0) 推荐(0)
【leetcode】Climbing Stairs
摘要： You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb... 阅读全文
posted @ 2014-06-09 18:49 SunshineAtNoon 阅读(112) 评论(0) 推荐(0)