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Finding all possible combinations of numbers to reach a given sum
...m([8, 7])=15
#sum([5, 10])=15
This type of algorithms are very well explained in the following Standford's Abstract Programming lecture - this video is very recommendable to understand how recursion works to generate permutations of solutions.
Edit
The above as a generator function, making i...
git replacing LF with CRLF
Running git on a Windows XP machine, using bash. I exported my project from SVN, and then cloned a bare repository.
20 Answ...
ReSharper Abbreviations List: Where can I modify it?
I am using ReSharper 4.5, and what often happens when I am converting explicit properties into auto-properties, is that I will accidentally chose "Add XX to abbreviations list".
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Convert a 1D array to a 2D array in numpy
...ith having to create a new array. You can use the np.resize function and mixing it with np.reshape, such as
>>> a =np.arange(9)
>>> np.resize(a, 10).reshape(5,2)
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How do I import a Swift file from another Swift file?
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I had the same problem, also in my XCTestCase files, but not in the regular project files.
To get rid of the:
Use of unresolved identifier 'PrimeNumberModel'
I needed to import the base module in the test file. In my case, my target is called 'myproje...
PHP code is not being executed, instead code shows on the page
I'm trying to execute some PHP code on a project (using Dreamweaver) but the code isn't being run.
27 Answers
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Pythonic way of checking if a condition holds for any element of a list
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any():
if any(t < 0 for t in x):
# do something
Also, if you're going to use "True in ...", make it a generator expression so it doesn't take O(n) memory:
if True in (t < 0 for t in x):
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Selecting with complex criteria from pandas.DataFrame
For example I have simple DF:
4 Answers
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Ruby: What is the easiest way to remove the first element from an array?
... Best answer since (a) evaluates to the trimmed array, and it works as expected on an empty array: [].drop(1) => []
– fearless_fool
Oct 21 '13 at 0:28
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Can't find the 'libpq-fe.h header when trying to install pg gem
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