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How do I declare a 2d array in C++ using new?
...ize it using a loop, like this:
int** a = new int*[rowCount];
for(int i = 0; i < rowCount; ++i)
a[i] = new int[colCount];
The above, for colCount= 5 and rowCount = 4, would produce the following:
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How to force IntelliJ IDEA to reload dependencies from build.sbt after they changed?
...t)
– Kaushik Acharya
Nov 16 '16 at 10:46
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How to get thread id from a thread pool?
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answered Jul 20 '10 at 20:59
skaffmanskaffman
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Printf width specifier to maintain precision of floating-point value
...n:
#include <float.h>
int Digs = DECIMAL_DIG;
double OneSeventh = 1.0/7.0;
printf("%.*e\n", Digs, OneSeventh);
// 1.428571428571428492127e-01
But let's dig deeper ...
Mathematically, the answer is "0.142857 142857 142857 ...", but we are using finite precision floating point numbers.
Let...
Getting rid of all the rounded corners in Twitter Bootstrap
I love Twitter Bootstrap 2.0 - I love how it's such a complete library... but I want to make a global modification for a very boxy-not-round site, which is to get rid of all the rounded corners in Bootstrap...
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Invoke a callback at the end of a transition
...milar to jQuery) using D3.js . What I need to do is to set the opacity to 0 using transition() .
9 Answers
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Add missing dates to pandas dataframe
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270
You could use Series.reindex:
import pandas as pd
idx = pd.date_range('09-01-2013', '09-30-201...
What is the difference between “px”, “dip”, “dp” and “sp”?
...sed on the physical density of the screen. These units are relative to a 160
dpi screen, so one dp is one pixel on a 160 dpi screen. The ratio of
dp-to-pixel will change with the screen density, but not necessarily
in direct proportion. Note: The compiler accepts both "dip" and
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How can I initialize base class member variables in derived class constructor?
...these variables private in A
};
class B : public A
{
public:
B() : A(0, 0) // Calls A's constructor, initializing a and b in A to 0.
{
}
};
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Add Text on Image using PIL
..."sans-serif.ttf", 16)
# draw.text((x, y),"Sample Text",(r,g,b))
draw.text((0, 0),"Sample Text",(255,255,255),font=font)
img.save('sample-out.jpg')
You might need to put some extra effort to calculate font size. In case you want to change it based on amount of text user has provided in TextArea.
T...