题目：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：
2015-08-02 08:54:04
阅读次数：
179
Description
Farmer John wants to repair a small length of the fence around the pasture. He measures the fence and finds that he needs N (1 ≤ N ≤ 20,000) planks of wood, each having some integer len...
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其他好文 时间：
2015-08-01 19:03:34
阅读次数：
89
K -Walking around BerhattanTime Limit:250MSMemory Limit:65536KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeSGU 463DescriptionAs you probably know...
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其他好文 时间：
2015-07-30 21:06:29
阅读次数：
112
原题：DescriptionA robot has to patrol around a rectangular area which is in a form ofmxngrid (mrows andncolumns). The rows are labeled from 1 tom. The c...
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其他好文 时间：
2015-07-26 20:36:03
阅读次数：
113
The 15-puzzle has been around for over 100 years; even if you don't know it by that name, you've seen it. It is constructed with 15 sliding tiles, eac...
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其他好文 时间：
2015-07-26 20:30:06
阅读次数：
106
Iencounter this problem several times, the way to get around this is to give"Everyoneor Network Service" permission to "C:\windows\temp" folder. I gav...
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数据库 时间：
2015-07-26 14:03:49
阅读次数：
182
Buy Tickets
Time Limit: 4000MS
Memory Limit: 65536K
Total Submissions: 15533
Accepted: 7759
Description
Railway tickets were difficult to buy around the Lunar New Yea...
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其他好文 时间：
2015-07-25 12:19:20
阅读次数：
198
题目：DescriptionA robot has to patrol around a rectangular area which is in a form ofmxngrid (mrows andncolumns). The rows are labeled from 1 tom. The c...
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其他好文 时间：
2015-07-24 22:35:22
阅读次数：
94
easyXDM - easy Cross-Domain MessagingeasyXDM is a Javascript library that enables you as a developer to easily work around the limitation set in place...
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编程语言 时间：
2015-07-24 09:10:57
阅读次数：
134
DescriptionThe 15-puzzle has been around for over 100 years; even if you don't know it by that name, you've seen it. It is constructed with 15 sliding...
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其他好文 时间：
2015-07-23 15:25:26
阅读次数：
141
