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Convert a character digit to the corresponding integer in C
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As per other replies, this is fine:
char c = '5';
int x = c - '0';
Also, for error checking, you may wish to check isdigit(c) is true first. Note that you cannot completely portably do the same for letters, for example:
char c = 'b';
int x = c - 'a'; // x is now not necessarily 1
Th...
What is the best way to programmatically detect porn images? [closed]
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This was written in 2000, not sure if the state of the art in porn detection has advanced at all, but I doubt it.
http://www.dansdata.com/pornsweeper.htm
PORNsweeper seems to have some ability to distinguish pictures of people from pictures of t...
How do I compile a Visual Studio project from the command-line?
...rge C++ solution that is using Monotone , CMake , Visual Studio Express 2008, and custom tests.
6 Answers
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seek() function?
...many positions you will move; from_what defines your point of reference:
0: means your reference point is the beginning of the file
1: means your reference point is the current file position
2: means your reference point is the end of the file
if omitted, from_what defaults to 0.
Never forget t...
Why switch is faster than if
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answered Jul 15 '11 at 10:56
DanielDaniel
25.2k1616 gold badges8484 silver badges128128 bronze badges
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Turn Pandas Multi-Index into column
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edited Oct 21 '14 at 21:02
Will
9,68888 gold badges5959 silver badges7171 bronze badges
answered Sep 8...
How to get the max of two values in MySQL?
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edited May 24 '19 at 10:13
answered Oct 14 '09 at 11:29
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Maximum single-sell profit
...ry!), but it's helpful to see the algorithm evolve:
5 10 4 6 7
min 5 5 4 4 4
best (5,5) (5,10) (5,10) (5,10) (5,10)
Answer: (5, 10)
5 10 4 6 12
min ...
Show percent % instead of counts in charts of categorical variables
... geom_bar(aes(y = (..count..)/sum(..count..))) +
## version 3.0.0
scale_y_continuous(labels=percent)
Here's a reproducible example using mtcars:
ggplot(mtcars, aes(x = factor(hp))) +
geom_bar(aes(y = (..count..)/sum(..count..))) +
scale_y_continuous(labels...
How to do this using jQuery - document.getElementById(“selectlist”).value
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150
$('#selectlist').val();
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