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How to trace the path in a Breadth-First Search?
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# graph is in adjacent list representation
graph = {
'1': ['2', '3', '4'],
'2': ['5', '6'],
'5': ['9', '10'],
'4': ['7', '8'],
'7': ['11', '12']
}
def bfs(graph, start, end):
# maintain a queue of paths
queue = []
# push the first path i...
How to convert a string of bytes into an int?
...odule to do this:
>>> struct.unpack("<L", "y\xcc\xa6\xbb")[0]
3148270713L
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Speed up the loop operation in R
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438
Biggest problem and root of ineffectiveness is indexing data.frame, I mean all this lines where...
What is the difference between ndarray and array in numpy?
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232
numpy.array is just a convenience function to create an ndarray; it is not a class itself.
Y...
How to remove extension from string (only real extension!)
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Try this one:
$withoutExt = preg_replace('/\\.[^.\\s]{3,4}$/', '', $filename);
So, this matches a dot followed by three or four characters which are not a dot or a space. The "3 or 4" rule should probably be relaxed, since there are plenty of file extensions which are shorter ...
How do I verify that an Android apk is signed with a release certificate?
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376
Use this command, (go to java < jdk < bin path in cmd prompt)
$ jarsigner -verify -verb...
Why is pow(a, d, n) so much faster than a**d % n?
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edited Jan 3 '13 at 6:08
answered Jan 3 '13 at 6:03
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How can I get the current network interface throughput statistics on Linux/UNIX? [closed]
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Mehrdad AfshariMehrdad Afshari
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How to configure Visual Studio to use Beyond Compare
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Extension: .*
Operation: Compare
Command: C:\Program Files\Beyond Compare 3\BComp.exe (replace with the proper path for your machine, including version number)
Arguments: %1 %2 /title1=%6 /title2=%7
If using Beyond Compare Professional (3-way Merge):
Extension: .*
Operation: Merge
Command: C:\P...
Rename MySQL database [duplicate]
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edited May 23 '17 at 12:10
Community♦
111 silver badge
answered Aug 30 '12 at 4:59
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