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 ≤ 20,00 ...
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其他好文 时间：
2016-08-21 00:49:44
阅读次数：
204
1. 问题描述 Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). Note: Bonus points if you could solve it both r ...
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其他好文 时间：
2016-08-21 00:45:20
阅读次数：
215
Question：
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).
For example, this binary tree [1,2,2,3,4,4,3] is symmetric:
1
/ 2 2
/ \ /...
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其他好文 时间：
2016-08-19 11:26:18
阅读次数：
145
Buy Tickets Time Limit: 4000MS Memory Limit: 65536K Total Submissions: 18561 Accepted: 9209 Description Railway tickets were difficult to buy around t ...
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其他好文 时间：
2016-08-19 00:40:06
阅读次数：
122
Once I got around the cafeteria, building three was easy to spot. 我一走出自助餐厅，很容易看见建筑三。 A large black "3" was painted on a white square on the east corne ...
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其他好文 时间：
2016-08-18 21:00:25
阅读次数：
110
I drove around the school, following the line of traffic. 我开车绕学校随着交通线。 我开车穿过校园，紧跟着大部队。 I was glad to see that most of the cars were older like mine, n ...
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其他好文 时间：
2016-08-17 21:04:37
阅读次数：
155
将服务器返回的JSON string转化成字典时报错： Error Domain=NSCocoaErrorDomain Code=3840 "Invalid escape sequence around character 586." 仔细查找后在原来解析的基础上将"\"字符替换成""或"\\"后, ...
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移动开发 时间：
2016-08-17 13:51:51
阅读次数：
777
JSONP—or JSON with padding—is a sneaky technique that web developers came up with to work around the browser restrictions when requesting data from th ...
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Web程序 时间：
2016-08-14 19:15:29
阅读次数：
272
A particular fine spring came around. 转眼又是一番分外明媚的春光。 Hey, it is hot outside, sometimes even unbearable. But you know, the cool and pleasant weather is ...
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其他好文 时间：
2016-08-12 23:25:51
阅读次数：
197
Sometimes you find a bug in your project that has been around for a while without being noticed; it can be hard to track down where that bug was intro ...
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其他好文 时间：
2016-08-12 06:45:47
阅读次数：
185
