Same Tree
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 and
the n...
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其他好文 时间：
2014-06-19 12:49:17
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301
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 of the two subtrees of every node never diffe...
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其他好文 时间：
2014-06-19 11:23:05
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204
一、树状数组树状数组是一个优美小巧的数据结构，在很多时候可以代替线段树。一句话概括就是，凡是树状数组可以解决的问题，线段树都可以解决，反过来线段树可以解决的问题，树状数组不一定能解决。树状数组英文名称为Binary
Index Tree，直译过来就是二进制索引树，我觉得二进制索引树更能说明其本质。树...
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其他好文 时间：
2014-06-16 07:24:03
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190
Given an array where elements are sorted in
ascending order, convert it to a height balanced BST.递归，二分法。 1 /** 2 *
Definition for binary tree 3 * st.....
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其他好文 时间：
2014-06-16 00:33:31
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252
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 and
sum = 22,
5
...
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其他好文 时间：
2014-06-15 19:55:39
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191
Given a binary tree, return the postorder traversal of its nodes' values.
For example:
Given binary tree {1,#,2,3},
1
2
/
3
return [3,2,1].
Note: Recursive solut...
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其他好文 时间：
2014-06-15 19:06:52
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166
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.
For example:
Given the below bin...
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其他好文 时间：
2014-06-15 09:34:35
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226
1、
??
Unique Binary Search Trees II
Given n, generate all structurally unique BST's (binary search trees) that store values 1...n.
For example,
Given n = 3, your program should return all 5 uni...
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其他好文 时间：
2014-06-15 09:09:00
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256
Path Sum：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 giv...
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其他好文 时间：
2014-06-13 16:09:02
阅读次数：
237
Given a binary tree, flatten it to a linked
list in-place.For example,Given 1 / \ 2 5 / \ \ 3 4 6The flattened t...
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其他好文 时间：
2014-06-13 15:11:35
阅读次数：
273
