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Algorithm to generate a crossword

...on which probably isn't the most efficient, but it works well enough. Basically: Sort all the words by length, descending. Take the first word and place it on the board. Take the next word. Search through all the words that are already on the board and see if there are any possible intersections (...
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Specify sudo password for Ansible

... For example, you might have a playbook something like this: - hosts: all vars_files: - secret tasks: - name: Do something as sudo service: name=nginx state=restarted sudo: yes Here we are including a file called secret which will contain our sudo password. We will...
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What is the simplest SQL Query to find the second largest value?

... What if there are multiple second highest... Then this will not give all the Tuples – Parth Satra Oct 16 '14 at 0:09 2 ...
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Entity Framework 4 - AddObject vs Attach

... 32 This is a late response but it might help others that find this. Basically, a "disconnected" e...
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In C#, should I use string.Empty or String.Empty or “” to intitialize a string?

...person - so I suggest you find out what most people on your team like, and all go with that for consistency. Personally I find "" easier to read. The argument that "" and " " are easily mistaken for each other doesn't really wash with me. Unless you're using a proportional font (and I haven't worke...
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How to convert a string to utf-8 in Python

..."utf-8") ^ Converting to unicode and specifying the encoding. In Python 3 All strings are unicode. The unicode function does not exist anymore. See answer from @Noumenon share | improve this answer...
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Can constructors be async?

...her “fire and forget” void, or Task. If the constructor of type T actually returned Task<T>, that would be very confusing, I think. If the async constructor behaved the same way as an async void method, that kind of breaks what constructor is meant to be. After constructor returns, you s...
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Test if a variable is a list or tuple

... excludes custom sequences, iterators, and other things that you might actually need. However, sometimes you need to behave differently if someone, for instance, passes a string. My preference there would be to explicitly check for str or unicode like so: import types isinstance(var, types.String...
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Python: fastest way to create a list of n lists

... The probably only way which is marginally faster than d = [[] for x in xrange(n)] is from itertools import repeat d = [[] for i in repeat(None, n)] It does not have to create a new int object in every iteration and is about 15 % faster on my machine. Edi...
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Remove blank attributes from an Object in Javascript

How do I remove all attributes which are undefined or null in a JavaScript object? 37 Answers ...