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How to create the most compact mapping n → isprime(n) up to a limit N?
...------|-------------|
| is_prime_3 | all | 0.20 | 0.95 | 50.99 |
| is_prime_3 | False | 0.20 | 0.60 | 40.62 |
| is_prime_3 | True | 0.58 | 4.22 | 50.99 |
|-------------|-------------|-------------|-------------|-----...
Apply multiple functions to multiple groupby columns
... 1]
df
a b c d group
0 0.418500 0.030955 0.874869 0.145641 0
1 0.446069 0.901153 0.095052 0.487040 0
2 0.843026 0.936169 0.926090 0.041722 1
3 0.635846 0.439175 0.828787 0.714123 1
A dictionary mapped from column names to aggr...
Difference between std::system_clock and std::steady_clock?
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Billy ONealBilly ONeal
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What is the difference between ELF files and bin files?
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95
A Bin file is a pure binary file with no memory fix-ups or relocations, more than likely it has...
What is the difference between integration and unit tests?
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ShellZero
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answered Sep 1 '08 at 19:33
Larry FoulkrodLarry ...
What is the lifetime of a static variable in a C++ function?
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MottiMotti
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CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...迟的。据统计，采用CDN技术，能处理整个网站页面的70%～95％的内容访问量，减轻服务器的压力，提升了网站的性能和可扩展性。
与目前现有的内容发布模式相比较，CDN强调了网络在内容发布中的重要性。通过引入主动的内容...
What is the meaning of “POSIX”?
...' 7 POSIX implementation currently stand?
https://superuser.com/questions/495360/does-windows-8-still-implement-posix
Feature request: https://windows.uservoice.com/forums/265757-windows-feature-suggestions/suggestions/6573649-full-posix-support
In 2016 a new official Linux-like API called "Window...
Asynchronous vs synchronous execution, what does it really mean? [closed]
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why in the world do words mean different things in computer...always leave me coming back to this...from dictionary.. synchronous: occurrin...