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What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
...tract the low-level representation and make it easier to comprehend ( uint64_t instead of long long type, which is 8 bytes).
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Does Java casting introduce overhead? Why?
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answered Jan 31 '10 at 7:14
Alex NtousiasAlex Ntousias
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How to port data-only volumes from one host to another?
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edited Mar 2 at 9:49
Egel
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answered May 2...
Why does my application spend 24% of its life doing a null check?
...eading from sequential addresses. The unit of storage for the L1 cache is 64 bytes. Or in other words, once the processor reads one byte, the next 63 are very fast since they'll be present in the cache.
Which makes an array by far the most efficient data structure. Also the reason that the .NET Lis...
Making 'git log' ignore changes for certain paths
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It is implemented now (git 1.9/2.0, Q1 2014) with the introduction pathspec magic :(exclude) and its short form :! in commit ef79b1f and commit 1649612, by
Nguyễn Thái Ngọc Duy (pclouds), documentation can be found here.
You now can log everything except a sub-f...
How Python web frameworks, WSGI and CGI fit together
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How WSG...
In Firebase, is there a way to get the number of children of a node without loading all the node dat
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海量数据相似度计算之simhash和海明距离 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
... out .println(" 耗费时间： " + (t2 - t1) + " ms ");
耗费时间： 4266 ms
大跌眼镜，居然计算耗费4秒。假设我们一天需要比较100w次，光是比较100w次的数据是否重复就需要4s，就算4s一个文档，单线程一分钟才处理15个文档，一个小时才900...