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题目: Given n, how many structurally unique BST's (binary search trees) that store values 1...n? (Medium) For example,Given n = 3, there are a total of 阅读全文
posted @ 2016-10-25 22:03
wangxiaobao1114
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摘要:
Given a binary tree, return the inorder traversal of its nodes' values. (Medium) For example:Given binary tree [1,null,2,3], return [1,3,2]. Note: Rec 阅读全文
posted @ 2016-10-25 22:00
wangxiaobao1114
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