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How many random elements before MD5 produces collisions?
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Probability of just two hashes accidentally colliding is 1/2128 which is 1 in 340 undecillion 282 decillion 366 nonillion 920 octillion 938 septillion 463 sextillion 463 quintillion 374 quadrillion 607 trillion 431 billion 768 million 211 thousand 456.
However if you keep all the ha...
how to detect search engine bots with php?
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edited Mar 24 '09 at 13:57
answered Mar 24 '09 at 13:37
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Package structure for a Java project?
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answered Oct 16 '08 at 22:54
johnstokjohnstok
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How do I query using fields inside the new PostgreSQL JSON datatype?
...g for some docs and/or examples for the new JSON functions in PostgreSQL 9.2.
3 Answers
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Set UILabel line spacing
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122
Edit: Evidently NSAttributedString will do it, on iOS 6 and later. Instead of using an NSString...
What is “thread local storage” in Python, and why do I need it?
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edited Jan 28 at 21:34
Willwsharp
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answ...
MediaNotification 媒体通知扩展：管理媒体播放器通知，支持播放控制 · Ap...
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BSS段、数据段、代码段、堆与栈 剖析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...下：
程序1:
int ar[30000];
void main()
{
......
}
程序2:
int ar[300000] = {1, 2, 3, 4, 5, 6 };
void main()
{
......
}
发现程序2 编译之后所得的.exe 文件比程序1 的要大得多。当下甚为不解，于是手工编译了一下，并使用了/FAs 编译选...
Why is a div with “display: table-cell;” not affected by margin?
...s="table">
<div class="row">
<div class="cell">123</div>
<div class="cell">456</div>
<div class="cell">879</div>
</div>
</div>
CSS
.table {display:table;border-collapse:separate;border-spacing:5px;}
.row {dis...
How to debug template binding errors for KnockoutJS?
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12 Answers
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