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Has anyone actually implemented a Fibonacci-Heap efficiently?
...lemented a Fibonacci-Heap ? I did so a few years back, but it was several orders of magnitude slower than using array-based BinHeaps.
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Check if value already exists within list of dictionaries?
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Here's one way to do it:
if not any(d['main_color'] == 'red' for d in a):
# does not exist
The part in parentheses is a generator expression that returns True for each dictionary that has the key-value pair you are looking for, otherwise False.
If the key could also...
Why git can't do hard/soft resets by path?
...ommands provide that functionality already), and it reduces the potential for doing the wrong thing by accident.
A "hard reset" for a path is just done with git checkout HEAD -- <path> (checking out the existing version of the file).
A soft reset for a path doesn't make sense.
A mixed reset...
Expansion of variables inside single quotes in a command in Bash
... have to close the quotes, insert something, and then re-enter again.
'before'"$variable"'after'
'before'"'"'after'
'before'\''after'
Word concatenation is simply done by juxtaposition. As you can verify, each of the above lines is a single word to the shell. Quotes (single or double quotes, depe...
Stack, Static, and Heap in C++
...ut it didn't ask about statics.
Summary of what static, heap, and stack memory are:
A static variable is basically a global variable, even if you cannot access it globally. Usually there is an address for it that is in the executable itself. There is only one copy for the entire program. No matter ...
Why is processing a sorted array faster than processing an unsorted array?
Here is a piece of C++ code that shows some very peculiar behavior. For some strange reason, sorting the data miraculously makes the code almost six times faster:
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Linking to an external URL in Javadoc?
... If anyone is interested, since I just had to look it up: According to the Javadoc spec the @see tag comes after the @param/@return tags and before the @since/@serial/@deprecated tags.
– friederbluemle
Oct 11 '13 at 5:18
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Get type of a generic parameter in Java with reflection
...uments()[0];
So there seems to be some reflection-magic around that I unfortunetly don't fully understand... Sorry.
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jQuery Validate - Enable validation for hidden fields
...of jQuery validation plugin 1.9 by default validation of hidden fields ignored . I'm using CKEditor for textarea input field and it hides the field and replace it with iframe. The field is there, but validation disabled for hidden fields. With validation plugin version 1.8.1 everything works as exp...
Suppress/ print without b' prefix for bytes in Python 3
Just posting this so I can search for it later, as it always seems to stump me:
4 Answers
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