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Pretty-print C++ STL containers
Please take note of the updates at the end of this post.
10 Answers
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Python: split a list based on a condition?
What's the best way, both aesthetically and from a performance perspective, to split a list of items into multiple lists based on a conditional? The equivalent of:
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node and Error: EMFILE, too many open files
For some days I have searched for a working solution to an error
17 Answers
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List of ANSI color escape sequences
On most terminals it is possible to colorize output using the \033 ANSI escape sequence.
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How to check permissions of a specific directory?
I know that using ls -l "directory/directory/filename" tells me the permissions of a file. How do I do the same on a directory?
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How do I create a crontab through a script
...need to add a cron job thru a script I run to set up a server. I am currently using Ubuntu. I can use crontab -e but that will open an editor to edit the current crontab. I want to do this programmatically.
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What is a plain English explanation of “Big O” notation?
...lem 100x as big takes 100³=1000000x as long... very unsustainable)
cN³ → c(2N)³ = 8(cN³)
... I add a fixed amount to the time an O(log(N)) ("logarithmic time") algorithm takes." (cheap!)
c log(N) → c log(2N) = (c log(2))+(c log(N)) = (fixed amount)+(c log(N))
... I don't chang...
How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
Since setting up my development environments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly.
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Plot two graphs in same plot in R
I would like to plot y1 and y2 in the same plot.
16 Answers
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What must I know to use GNU Screen properly? [closed]
...ving a hard time getting used to it. That makes me think about the essential things he needs to know about the excellent Screen utility, the same things that you'd think worthwhile to teach someone, a beginner, from the ground up. What are some analogies and handy tips for remembering binds, etc.?...