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's...
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其他好文 时间：
2014-08-18 00:03:13
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189
Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtree of a node contains only n...
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其他好文 时间：
2014-08-17 21:11:02
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213
Two elements of a binary search tree (BST) are swapped by mistake.Recover the tree without changing its structure.Note:A solution using O(n) space is ...
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其他好文 时间：
2014-08-17 21:08:02
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339
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 / \ ...
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其他好文 时间：
2014-08-17 19:55:32
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215
Given two binary trees, write a function to check if they are equal or not.Two binary trees are considered equal if they are structurally identical an...
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其他好文 时间：
2014-08-17 19:49:42
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190
-----QUESTION-----Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).For example, this binary tree is symme...
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其他好文 时间：
2014-08-17 19:47:22
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259
Given a binary tree, return the zigzag level order traversal of its nodes' values. (ie, from left to right, then right to left for the next level and ...
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其他好文 时间：
2014-08-17 18:25:02
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233
Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest le...
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其他好文 时间：
2014-08-17 16:55:02
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202
Given preorder and inorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.思路：利用先序遍历提供的根节点...
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其他好文 时间：
2014-08-17 16:54:02
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160
Given inorder and postorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.思路：利用后序遍历提供的根节...
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其他好文 时间：
2014-08-17 16:52:12
阅读次数：
228
