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Java HashMap performance optimization / alternative
...ound 20,000 codes for 26 million distinct objects. That is an average of 1,300 objects per hash bucket = very very bad. However if I turn the two arrays into a number in base 52 I am guaranteed to get a unique hash code for every object:
public int hashCode() {
// assume that both a and ...
Qt: can't find -lGL error
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edited Jul 30 '18 at 14:05
Rando Hinn
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How to read/process command line arguments?
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edited May 23 '18 at 21:33
wim
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Reducing MongoDB database file size
I've got a MongoDB database that was once large (>3GB). Since then, documents have been deleted and I was expecting the size of the database files to decrease accordingly.
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Checking for empty arrays: count vs empty
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@prodigitalson I would say that count is O(1), since PHP stores the number of elements internally. Check out this answer stackoverflow.com/a...
Parse a URI String into Name-Value Collection
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If you are looking for a way to achieve it without using an external library, the following co...
How to alter SQL in “Edit Top 200 Rows” in SSMS 2008
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If you right click on any result of "Edit Top 200 Rows" query in SSMS you will see the option "P...
Error: No default engine was specified and no extension was provided
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13 Answers
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How to use glob() to find files recursively?
...lib.Path.rglob from the the pathlib module, which was introduced in Python 3.5.
from pathlib import Path
for path in Path('src').rglob('*.c'):
print(path.name)
If you don't want to use pathlib, use can use glob.glob('**/*.c'), but don't forget to pass in the recursive keyword parameter and it ...