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Counting inversions in an array
...m to do the following: Given array A[1... n] , for every i < j , find all inversion pairs such that A[i] > A[j] . I'm using merge sort and copying array A to array B and then comparing the two arrays, but I'm having a difficult time seeing how I can use this to find the number of inversions...
What's the difference between using CGFloat and float?
I tend to use CGFloat all over the place, but I wonder if I get a senseless "performance hit" with this. CGFloat seems to be something "heavier" than float, right? At which points should I use CGFloat, and what makes really the difference?
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python multithreading wait till all threads finished
...oin method of Thread object in the end of the script.
t1 = Thread(target=call_script, args=(scriptA + argumentsA))
t2 = Thread(target=call_script, args=(scriptA + argumentsB))
t3 = Thread(target=call_script, args=(scriptA + argumentsC))
t1.start()
t2.start()
t3.start()
t1.join()
t2.join()
t3.join...
varbinary to string on SQL Server
...
THIS ANSWER IS NOT CORRECT. I tested it on table with user SIDs - amount of Distinct casted values is less then amount of Distinct binary SIDs. You should use CONVERT(VARCHAR(...), binaryValue, 2) to get unique value - answer from Gunjan Juyal is the right one - it sh...
Checkstyle vs. PMD
...ll three overlap to a degree and also bring their own, unique rules to the table. This is why tools like Sonar use all three.
That said, Findbugs has the most specific or niche rules (e.g. "Dubious catching of IllegalMonitorStateException" - how often are you likely to run into that?) so it is usab...
Function return value in PowerShell
...
PowerShell has really wacky return semantics - at least when viewed from a more traditional programming perspective. There are two main ideas to wrap your head around:
All output is captured, and returned
The return keyword really just indi...
How to delete a file from SD card?
... I think Inner children are not deleted.. you have to delete all inner childs.See my answer below..
– AndroidGeek
May 15 '14 at 7:56
2
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Javascript equivalent of Python's zip function
..., unlike Python's version where the argument list is variadic. If you want all of these "features", see below. It takes just about 2 extra lines of code.
The following will mimic Python's zip behavior on edge cases where the arrays are not of equal size, silently pretending the longer parts of arra...
Is the C# static constructor thread safe?
... {
mutex.WaitOne();
return instance;
}
// Each call to Acquire() requires a call to Release()
public static void Release()
{
mutex.ReleaseMutex();
}
}
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...
CSS container div not getting height
...ter, .clearfix::before {
content: '';
clear: both;
display: table;
}
Or you could try display:inline-block; property, then you don't need to add any clearfix.
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