Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: Note: You may assume the ...
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其他好文 时间：
2018-03-27 10:25:11
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220
To be is to be perceived. 存在即被感知。 How to interpret this quote? Maybe it means that everything in your world doesn't exist if you failed to percept it. ...
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其他好文 时间：
2018-03-14 23:43:10
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205
题目连接： acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=1109 题目描述: We all know that FatMouse doesn't speak English. But now he has to be prepared ...
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其他好文 时间：
2018-03-11 14:34:43
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200
使用xadmin源码安装出现报错： ProgrammingError at /xadmin/users/emailverifyrecord/add/(1146, "Table 'mxonline.xadmin_log' doesn't exist") 解决： 原因是缺少了一些表。在manage.py ...
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其他好文 时间：
2018-03-06 00:48:30
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368
A string t is called nice if a string "2017" occurs in t as a subsequence but a string "2016" doesn't occur in t as a subsequence. For example, string ...
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其他好文 时间：
2018-02-26 20:40:43
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436
Bug? #1146 - Table 'xxx.xxxxx' doesn't exist ...
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其他好文 时间：
2018-02-20 16:43:37
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91
这个问题是由于data的目录下没有安装数据库表 解决方法： vi /etc/my.cnf 修改为正确的datadir=“xxxxx”即可 然后service mysqld start service mysql start 正常启动后，会再/var/lib/mysql下面生成mysql.sock文件 ...
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数据库 时间：
2018-02-15 00:18:39
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248
By default the response body doesn’t contain all the data that might be needed in your app. Your server might return some special header which you hav ...
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Web程序 时间：
2018-02-14 21:32:17
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345
To remember is to disengage from the present. 铭记过去就是放弃当下。 To remember the past doesn't mean we would disengage from the present. For most of us, the p ...
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其他好文 时间：
2018-02-13 22:14:26
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182
You are given a non-negative integer n, its decimal representation consists of at most 100 digits and doesn't contain leading zeroes. Your task is to ...
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其他好文 时间：
2018-02-02 18:30:16
阅读次数：
195
