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What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
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86
See this page on the ARC project for a survey of solutions, there is a trade-off between implem...
Does ruby have real multithreading?
...e R, which means they are running in parallel.
(jalcazar@mac ~)$ ps -M 72286
USER PID TT %CPU STAT PRI STIME UTIME COMMAND
jalcazar 72286 s002 0.0 S 31T 0:00.01 0:00.01 /Library/Java/JavaVirtualMachines/jdk1.7.0_25.jdk/Contents/Home/bin/java -Djdk.home= -Djruby.home=/Users...
How to generate keyboard events in Python?
...2
F20 = 0x83
F21 = 0x84
F22 = 0x85
F23 = 0x86
F24 = 0x87
numlock = 0x90
scrolllock = 0x91
leftshift = 0xA0
rightshift = 0xA1
leftctrl = 0xA2
rightctrl = 0xA3
leftmenu = 0xA4
rightmenu = 0xA5
...
STL中map容器使用自定义key类型报错详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...使用自定义key类型报错详解引言STL的map容器中，key的类型是不是随意的呢？实践编写测试代码定义一个结构体来试试：[cpp]view plaincopystructa{char*pName;intm_a;} 引言
STL的map容器中，key的类型是不是随意的呢？
实践
编写测试代...
Why are Perl 5's function prototypes bad?
...11
Flimm
86.4k2828 gold badges186186 silver badges191191 bronze badges
answered Nov 17 '08 at 21:55
cjmcjm
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Why should hash functions use a prime number modulus?
...an immediate address scale factor (e.g. lea eax,eax*8; leax, eax,eax*4 on x86/x64). So *31 is a good candidate for prime number multiplication. This was pretty much true some years ago - now latest CPUs architecture have an almost instant multiplication - division is always slower...
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mfc里面的140种颜色宏 - C/C++ - 清泛网 - 专注C/C++及内核技术
mfc里面的140种颜色宏MFC编码是需要配色的，可以参考使用。#pragma once #define CLR_LIGHTPINK RGB(255, 182, 193) ...mfc编码时需要配色的，可以参考使用。
#pragma once
#define CLR_LIGHTPINK RGB(255, 182, 193) // 浅粉红
#...
Read an Excel file directly from a R script
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Ben BolkerBen Bolker
160k1919 gold badges286286 silver badges366366 bronze badges
6
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CSS filter: make color image with transparency white
...B/nRNo739/YnX9azKUXYCg9CtlvdAUyywuEB1p4gh9AzbPZc0mF8Z+sINgn0MIwiVgKcAG6rGlT86AMdqw2n8ppR63o+mveQXCFAxzX2BWD0P6pcT+g3uNlmEDV3JX4iOh1xICdWU2gGXOMXN5HfRhK4IoPxlfXQfmKf+Ajh1I+MEeHMcKzqvoxoZsHsoOXgP+fEkxbw1e2JhB0h2q9tc4OL/fAVdsdd3jnyhklmRo8qGBQXchIvMMKPW7Pt85/SM66CNmDw1mh75cHu6JWZFZxNLNSJTPIM5PuJquKEt3o6...
Why do we need virtual functions in C++?
... );
cout << sum.value() << endl;
}
Here the output is 6.86 as it should be, since the virtual method is called virtually. This is also called dynamic binding of the calls. A little check is performed, finding the actual dynamic type of object, and the relevant method implementatio...