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Forced naming of parameters in Python
In Python you may have a function definition:
11 Answers
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Remove duplicate dict in list in Python
...ictionary. Since the tuples can be hashed, you can remove duplicates using set (using a set comprehension here, older python alternative would be set(tuple(d.items()) for d in l)) and, after that, re-create the dictionaries from tuples with dict.
where:
l is the original list
d is one of the dict...
SQL Server: What is the difference between CROSS JOIN and FULL OUTER JOIN?
...explains the various types of joins with examples of output given a sample set of tables.
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Why are elementwise additions much faster in separate loops than in a combined loop?
..., there is a high chance that large allocations will appear at the same offset from a page-boundary.
Here's the test code:
int main(){
const int n = 100000;
#ifdef ALLOCATE_SEPERATE
double *a1 = (double*)malloc(n * sizeof(double));
double *b1 = (double*)malloc(n * sizeof(double));
d...
How to parse/read a YAML file into a Python object? [duplicate]
...pip install is permanent, note. stackoverflow.com/questions/1550226/python-setup-py-uninstall
– personal_cloud
Sep 18 '17 at 20:17
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Why does Google +1 record my mouse movements? [closed]
...ript loaded first, you could hook addEventListener and log everyone who is setting addEventListener and see who's doing it and then, by looking at the relevant code, see what they're doing.
Put this in place before the Google code loads:
var oldListener = document.addEventListener;
document.addEve...
Finding three elements in an array whose sum is closest to a given number
...pate in any satisfying sum -- so we may as well discard it! Which we do by setting j = j+1 and starting over (though it may help to think in terms of solving a smaller subproblem recursively instead). Likewise if the sum A[j] + A[k] is too high, then we know that A[j'] + A[k] must also be too high ...
How do I add files without dots in them (all extension-less files) to the gitignore file?
... Note: to work with other exclusion rules, this will need to be the first set of rules in your .gitignore file
– Erik
Jan 12 '15 at 22:41
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Create a tar.xz in one command
...keep the original file and -9 for really heavy compression. -z to manually set xz to zip, though it defaults to zipping if not otherwise directed.
To uncompress and untar
To echo Rafael van Horn, to uncompress & untar (see note below):
xz -dc baz.tar.xz | tar x
Note: unlike Rafael's answ...
Maximum single-sell profit
...Let min = arr[0]
# For k = 1 to length(arr):
# If arr[k] < min, set min = arr[k]
# If profit < arr[k] - min, set profit = arr[k] - min
#
# This is short, sweet, and uses only O(n) time and O(1) memory. The beauty of
# this solution is that we are quite naturally led there by thi...