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Counting inversions in an array
...’s an example run of this algorithm. Original array A = (6, 9, 1, 14, 8, 12, 3, 2)
1: Merge sort and copy to array B
B = (1, 2, 3, 6, 8, 9, 12, 14)
2: Take A[1] and binary search to find it in array B
A[1] = 6
B = (1, 2, 3, 6, 8, 9, 12, 14)
6 is in the 4th position of array B, thus there are...
In Python, how do you convert seconds since epoch to a `datetime` object?
...e output as with time.gmtime
>>> datetime.datetime.fromtimestamp(1284286794)
datetime.datetime(2010, 9, 12, 11, 19, 54)
or
>>> datetime.datetime.utcfromtimestamp(1284286794)
datetime.datetime(2010, 9, 12, 10, 19, 54)
...
RegEx for Javascript to allow only alphanumeric
... characters.
– Eric Normand
Feb 24 '12 at 22:53
23
Wow--I don't think I ever thoroughly understoo...
Convert list to tuple in Python
...
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
answered Oct 11 '12 at 9:15
rootroot
...
How to search for occurrences of more than one space between words in a line
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AlexanderMPAlexanderMP
12.7k55 gold badges3636 silver badges5757 bronze badges
...
How to include an '&' character in a bash curl statement
...
123
Putting the entire URL inside double quotes should take care of your problem.
...
Python - abs vs fabs
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127
math.fabs() converts its argument to float if it can (if it can't, it throws an exception). It...
Capturing Groups From a Grep RegEx
...he following examples and more, which may not be what you're looking for:
123_abc_d4e5
xyz123_abc_d4e5
123_abc_d4e5.xyz
xyz123_abc_d4e5.xyz
To eliminate the second and fourth examples, make your regex like this:
^[0-9]+_([a-z]+)_[0-9a-z]*
which says the string must start with one or more digit...
Stack vs heap allocation of structs in Go, and how they relate to garbage collection
...myFunction2" ---
0008 (s.go:11) TEXT myFunction2+0(SB),$0-16
0009 (s.go:12) LEAQ chunk+0(SP),DI
0010 (s.go:12) MOVQ $0,AX
0011 (s.go:14) LEAQ .noname+0(FP),BX
0012 (s.go:14) LEAQ chunk+0(SP),BX
0013 (s.go:14) MOVQ $0,.noname+0(FP)
0014 (s.go:14) MOVQ $0,.noname+8(FP)
0015 (s.go:...
What is the Objective-C equivalent for “toString()”, for use with NSLog?
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edited Aug 27 '12 at 19:01
answered Jul 9 '09 at 15:49
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