Problem DescriptionRecently, Peter likes to measure the humidity of leaves. He recorded a leaf humidity every day. There are four types of leaves wetn...
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其他好文 时间:
2014-08-06 21:42:32
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275
题目:Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root).F....
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编程语言 时间:
2014-08-05 05:18:08
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340
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 leaf node.
/**
* Definition for binary tree
...
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其他好文 时间:
2014-08-02 23:32:04
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232
题目:Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.An example is the root-to-leaf path 1->2->3 w....
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编程语言 时间:
2014-08-01 06:57:21
阅读次数:
297
Path SumGiven 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 give...
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其他好文 时间:
2014-07-31 23:18:10
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227
Path Sum IIGiven 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 tr...
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其他好文 时间:
2014-07-31 23:17:10
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175
定义:将对象组合成树形结构以表示“部分整体”的层次结构。组合模式使得用户对单个对象和组合对象的使用具有一致性。
组成:
1.Component 是组合中的对象声明接口,在适当的情况下,实现所有类共有接口的默认行为。声明一个接口用于访问和管理Component子部件。
2.Leaf 在组合中表示叶子结点对象,叶子结点没有子结点。
3.Composite 定义有枝节点行为,用来存储子部件,在C...
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其他好文 时间:
2014-07-31 13:18:26
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188
题目: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 ....
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编程语言 时间:
2014-07-31 05:22:15
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287
题目: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 su....
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编程语言 时间:
2014-07-31 05:21:25
阅读次数:
214
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.An example is the root-to-leaf path 1->2->3 which...
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其他好文 时间:
2014-07-30 11:30:33
阅读次数:
247