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How to test which port MySQL is running on and whether it can be connected to?
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Open Redis port for remote connections
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Did you set the bind option to allow remote access on the redis server?
Before (file /etc/redi...
List of lists changes reflected across sublists unexpectedly
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Generate random numbers with a given (numerical) distribution
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Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
...unt. Just pass in a string like "3F6D2A" for the color ( col ) and a base10 integer ( amt ) for the amount to lighten or darken. To darken, pass in a negative number (i.e. -20 ).
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What is the difference between float and double?
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C++常用排序算法汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...堆排序(HeapSort)，插入排序(InsertSort)，希尔排序(ShellSort) 1、选择排序(SelectSort)
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* 简单选择排序
* 稳定排序，O{n^2} ~ O{n^2}
* 从首位开始，循环一次找出一个比首位小的值，交换
*
* https://www.tsi...
How do I create an average from a Ruby array?
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edited May 10 '15 at 14:40
Joshua Pinter
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how to ignore namespaces with XPath
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You can use the local-name() XPath function. Instead of selecting a node like
/path/to/x:some...