Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.
分类：
其他好文 时间：
2014-07-10 00:18:17
阅读次数：
278
【题目】
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 solution is trivial, could you do it iteratively?
【题意】
非递归实现后续遍...
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其他好文 时间：
2014-06-30 10:10:10
阅读次数：
177
题目
Clone an undirected graph. Each node in the graph contains a label and
a list of its neighbors.
OJ's undirected graph serialization:
Nodes are labeled uniquely.
We use # as a separa...
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其他好文 时间：
2014-06-30 09:01:23
阅读次数：
197
【题目】
Given a binary tree, return the preorder traversal of its nodes' values.
For example:
Given binary tree {1,#,2,3},
1
2
/
3
return [1,2,3].
Note: Recursive solution is trivial, could you do it iteratively?
【题意】
非递归返回先序遍历...
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其他好文 时间：
2014-06-30 06:21:18
阅读次数：
334
Maximum Depth of Binary TreeGiven a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root ...
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其他好文 时间：
2014-06-27 23:13:24
阅读次数：
218
Given a linked list, swap every two adjacent nodes and return its head.
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其他好文 时间：
2014-06-27 12:42:55
阅读次数：
198
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
分类：
其他好文 时间：
2014-06-27 12:21:24
阅读次数：
215
1.查询数据库是否有等待select * from resource_queues where node_name=(select node_name from nodes order by node_name limit 1) order by queue_entry_timestamp desc...
分类：
数据库 时间：
2014-06-27 12:03:53
阅读次数：
680
题目：You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a sing...
分类：
其他好文 时间：
2014-06-27 11:38:12
阅读次数：
207
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 nodes with keys less than the node's key....
分类：
其他好文 时间：
2014-06-27 09:15:12
阅读次数：
196
