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How to change the output color of echo in Linux
... to the terminal's default
tput bel # Play a bell
With compiz wobbly windows, the bel command makes the terminal wobble for a second to draw the user's attention.
Scripts
tput accepts scripts containing one command per line, which are executed in order before tput exits.
Avoid temporary f...
What is the difference between Bower and npm?
... Sindre SorhusSindre Sorhus
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What's “P=NP?”, and why is it such a famous question? [closed]
...NP or P!=NP. If anyone provides a proof for either conjecture, they will win US $1 million.
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Determining complexity for recursive functions (Big O notation)
...4, even though the result is the same, shouldn't the induction be the following? T(n) = a + 2T(n-1) = a + 2a + 4T(n-1) = 3a + 4a + 8T(n-1) = a * (2^n - 1) + 2^n * T(0) = a * (2^n - 1) + b * 2^n = (a + b) * 2^n - a = O(2^n)
– Snowfish
Jan 3 at 22:59
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What are the differences between Autotools, Cmake and Scons?
... a painful experience to get an Autotools setup to build usable code for a Windows system. (While I've little use for Windows, it is a serious concern if you're developing purportedly cross-platform code.)
When it breaks, you're going to spend HOURS chasing your tail trying to sort out the things t...
How can I pair socks from a pile efficiently?
...ent than a modern CPU, this question makes no practical sense.
Humans can win over CPU algorithms using the fact that "finding a matching pair" can be one operation for a set that isn't too big.
My algorithm:
spread_all_socks_on_flat_surface();
while (socks_left_on_a_surface()) {
// Thanks t...
How many GCC optimization levels are there?
... further optimizations
designed to reduce code size.
-Os disables the following optimization flags: -falign-functions -falign-jumps -falign-loops -falign-labels -freorder-blocks -freorder-blocks-and-partition -fprefetch-loop-arrays -ftree-vect-loop-version)
There may also be platform specific opti...
Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...lMakefile 教程 入门makefile很重要 什么是makefile？或许很多Winodws的程序员都不知道这个东西，因为那些Windows的IDE都为你做了这个工作，但我觉得要作
makefile。makefile带来的好处就是——“自动化编译”，一旦写好，只需要一个m...
Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...lMakefile 教程 入门makefile很重要 什么是makefile？或许很多Winodws的程序员都不知道这个东西，因为那些Windows的IDE都为你做了这个工作，但我觉得要作
makefile。makefile带来的好处就是——“自动化编译”，一旦写好，只需要一个m...
Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...lMakefile 教程 入门makefile很重要 什么是makefile？或许很多Winodws的程序员都不知道这个东西，因为那些Windows的IDE都为你做了这个工作，但我觉得要作
makefile。makefile带来的好处就是——“自动化编译”，一旦写好，只需要一个m...