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Can every recursion be converted into iteration?
...-first traversal can be done using a queue.
So, the answer is: yes. Why: https://stackoverflow.com/a/531721/2128327.
Can any recursion be done in a single loop? Yes, because
a Turing machine does everything it does by executing a single loop:
fetch an instruction,
evaluate it,
goto 1.
...
How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
...Log(@"parameter1: %d parameter2: %f", parameter1, parameter2);
});
More: https://developer.apple.com/documentation/dispatch/1452876-dispatch_after
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How to set HTTP headers (for cache-control)?
... </filesmatch>
# css and js should use private for proxy caching https://developers.google.com/speed/docs/best-practices/caching#LeverageProxyCaching
<filesmatch "\.(css)$">
Header set Cache-Control "max-age=31536000, private"
</filesmatch>
<filesmatch "\...
How to obtain the number of CPUs/cores in Linux from the command line?
... 32K
L2 cache: 4096K
NUMA node0 CPU(s): 0-7
See also https://unix.stackexchange.com/questions/468766/understanding-output-of-lscpu.
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T-SQL split string
...erformance.com/2012/08/t-sql-queries/splitting-strings-now-with-less-t-sql
https://sqlblog.org/2010/07/07/splitting-a-list-of-integers-another-roundup
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Variable declaration placement in C
...much bigger problem: the enclosing block is too long and should be split.
https://wiki.sei.cmu.edu/confluence/display/c/DCL19-C.+Minimize+the+scope+of+variables+and+functions
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How can you profile a Python script?
...rof2dot, and got pretty svgs:
$ sudo apt-get install graphviz
$ git clone https://github.com/jrfonseca/gprof2dot
$ ln -s "$PWD"/gprof2dot/gprof2dot.py ~/bin
$ cd $PROJECT_DIR
$ gprof2dot.py -f pstats profile.pstats | dot -Tsvg -o callgraph.svg
and BLAM!
It uses dot (the same thing that pycallgra...
Objective-C: Where to remove observer for NSNotification?
...er send notifications to
registered observers that may be deallocated.
https://developer.apple.com/library/mac/releasenotes/Foundation/RN-Foundation/index.html#10_11NotificationCenter
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How do I apply a CSS class to Html.ActionLink in ASP.NET MVC?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
git status shows modifications, git checkout — doesn't remove them
...ll be stuck with this problem. A permanent solution can be
found here:
https://help.github.com/articles/dealing-with-line-endings/#re-normalizing-a-repository.
Setup:
Xubuntu 12.04
Git repo with glfw project
Problem: Unable to reset glfw files. They always show as modified, regardless of what...