摘要: Given a binary tree, find the maximum path sum.For this problem, a path is defined as any sequence of nodes from some starting node to any node in the... 阅读全文
posted @ 2015-12-13 19:14 ZHOU YANG 阅读(263) 评论(0) 推荐(0)
摘要: Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum.For example:Given the below binary tree andsum =... 阅读全文
posted @ 2015-12-13 17:21 ZHOU YANG 阅读(557) 评论(0) 推荐(0)
摘要: Given an arraySofnintegers, find three integers inSsuch that the sum is closest to a given number, target. Return the sum of the three integers. You m... 阅读全文
posted @ 2015-12-13 16:35 ZHOU YANG 阅读(171) 评论(0) 推荐(0)
摘要: Givennballoons, indexed from0ton-1. Each balloon is painted with a number on it represented by arraynums. You are asked to burst all the balloons. If ... 阅读全文
posted @ 2015-12-13 16:12 ZHOU YANG 阅读(455) 评论(0) 推荐(0)
摘要: Given inorder and postorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.Subscribeto se... 阅读全文
posted @ 2015-12-13 14:42 ZHOU YANG 阅读(205) 评论(0) 推荐(0)