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TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...f.h
/*
* Two Levels Segregate Fit memory allocator (TLSF)
* Version 2.4.6
*
* Written by Miguel Masmano Tello <mimastel@doctor.upv.es>
*
* Thanks to Ismael Ripoll for his suggestions and reviews
*
* Copyright (C) 2008, 2007, 2006, 2005, 2004
*
* This code is released using a d...
How can I get the intersection, union, and subset of arrays in Ruby?
...union
def |(other)
@set | other.set
end
end
x = MultiSet.new([1,1,2,2,3,4,5,6])
y = MultiSet.new([1,3,5,6])
p x - y # [2,2,4]
p x & y # [1,3,5,6]
p x | y # [1,2,3,4,5,6]
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|
impro...
dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
...
26
Since dplyr 0.8 group_by gained the .drop argument that does just what you asked for:
df = dat...
Obfuscated C Code Contest 2006. Please explain sykes2.c
...
1824
Let's de-obfuscate it.
Indenting:
main(_) {
_^448 && main(-~_);
putchar(--_%6...
How do you downgrade rubygems?
I have rubygems 1.3.1 installed but I want to go back to 1.2.0. What's the command to downgrade rubygems?
6 Answers
...
How to create a density plot in matplotlib?
...
124
Sven has shown how to use the class gaussian_kde from Scipy, but you will notice that it doesn'...
What does “@@ -1 +1 @@” mean in Git's diff output?
...time
+++ to-file to-file-modification-time
The time stamp looks like 2002-02-21 23:30:39.942229878 -0800 to indicate the date, time with fractional seconds, and time zone. The fractional seconds are omitted on hosts that do not support fractional time stamps.
You can change the header's c...
How to round float numbers in javascript?
...
answered Feb 26 '12 at 13:24
davindavin
39.4k77 gold badges7070 silver badges7777 bronze badges
...
Pandas DataFrame column to list [duplicate]
...
270
You can use the Series.to_list method.
For example:
import pandas as pd
df = pd.DataFrame({...
Pandas dataframe get first row of each group
...
248
>>> df.groupby('id').first()
value
id
1 first
2 first
3 first
4...