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摘要: Follow up for problem "Populating Next Right Pointers in Each Node".What if the given tree could be any binary tree? Would your previous solution stil... 阅读全文
posted @ 2015-07-22 21:33 ~每天进步一点点~ 阅读(137) 评论(0) 推荐(0) 编辑
摘要: Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode *next; }Populate each next pointe... 阅读全文
posted @ 2015-07-22 21:10 ~每天进步一点点~ 阅读(143) 评论(0) 推荐(0) 编辑
摘要: Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from the orig... 阅读全文
posted @ 2015-07-22 20:49 ~每天进步一点点~ 阅读(135) 评论(0) 推荐(0) 编辑
摘要: Given a binary tree, flatten it to a linked list in-place.For example,Given 1 / \ 2 5 / \ \ 3 4 6The flattened t... 阅读全文
posted @ 2015-07-22 20:11 ~每天进步一点点~ 阅读(114) 评论(0) 推荐(0) 编辑
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 @ 2015-07-22 18:48 ~每天进步一点点~ 阅读(107) 评论(0) 推荐(0) 编辑
摘要: Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum.Fo... 阅读全文
posted @ 2015-07-22 17:54 ~每天进步一点点~ 阅读(108) 评论(0) 推荐(0) 编辑
摘要: Given a binary tree, find its minimum depth.The minimum depth is the number of nodes along the shortest path from the root node down to the nearest le... 阅读全文
posted @ 2015-07-22 13:10 ~每天进步一点点~ 阅读(141) 评论(0) 推荐(0) 编辑
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 @ 2015-07-21 23:47 ~每天进步一点点~ 阅读(172) 评论(0) 推荐(0) 编辑
摘要: Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST./** * Definition for singly-linked list. ... 阅读全文
posted @ 2015-07-21 23:18 ~每天进步一点点~ 阅读(101) 评论(0) 推荐(0) 编辑
摘要: Given an array where elements are sorted in ascending order, convert it to a height balanced BST./** * Definition for a binary tree node. * public cla... 阅读全文
posted @ 2015-07-21 22:51 ~每天进步一点点~ 阅读(89) 评论(0) 推荐(0) 编辑
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