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2016年10月20日

leetcode 96 Unique Binary Search Trees ----- java

摘要： Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example,Given n = 3, there are a total of 5 unique BST' 阅读全文

posted @ 2016-10-20 22:45 xiaoba1203 阅读(112) 评论(0) 推荐(0) 编辑

leetcode 94 Binary Tree Inorder Traversal ----- java

摘要： Given a binary tree, return the inorder traversal of its nodes' values. For example:Given binary tree [1,null,2,3], return [1,3,2]. Note: Recursive so 阅读全文

posted @ 2016-10-20 19:02 xiaoba1203 阅读(202) 评论(0) 推荐(0) 编辑

leetcode 93 Restore IP Addresses ----- java

摘要： Given a string containing only digits, restore it by returning all possible valid IP address combinations. For example:Given "25525511135", return ["2 阅读全文

posted @ 2016-10-20 18:23 xiaoba1203 阅读(301) 评论(0) 推荐(0) 编辑

leetcode 92 Reverse Linked List II ----- java

摘要： Reverse a linked list from position m to n. Do it in-place and in one-pass. For example:Given 1->2->3->4->5->NULL, m = 2 and n = 4, return 1->4->3->2- 阅读全文

posted @ 2016-10-20 16:37 xiaoba1203 阅读(218) 评论(0) 推荐(0) 编辑

leetcode 91 Decode Ways ----- java

摘要： A message containing letters from A-Z is being encoded to numbers using the following mapping: Given an encoded message containing digits, determine t 阅读全文

posted @ 2016-10-20 15:19 xiaoba1203 阅读(304) 评论(0) 推荐(0) 编辑

2016年10月20日

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