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What is better, adjacency lists or adjacency matrices for graph problems in C++?
What is better, adjacency lists or adjacency matrix, for graph problems in C++?
What are the advantages and disadvantages of each?
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How do you rotate a two dimensional array?
Inspired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
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When NOT to use yield (return) [duplicate]
There are several useful questions here on SO about the benefits of yield return . For example,
11 Answers
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What really is a deque in STL?
I was looking at STL containers and trying to figure what they really are (i.e. the data structure used), and the deque stopped me: I thought at first that it was a double linked list, which would allow insertion and deletion from both ends in constant time, but I am troubled by the promise made ...
Efficiency of purely functional programming
Does anyone know what is the worst possible asymptotic slowdown that can happen when programming purely functionally as opposed to imperatively (i.e. allowing side-effects)?
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Test if lists share any items in python
I want to check if any of the items in one list are present in another list. I can do it simply with the code below, but I suspect there might be a library function to do this. If not, is there a more pythonic method of achieving the same result.
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make: Nothing to be done for `all'
I am going through an eg pgm to create a make file.
7 Answers
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Creating a dynamic choice field
I'm having some trouble trying to understand how to create a dynamic choice field in django. I have a model set up something like:
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Efficient way to rotate a list in python
What is the most efficient way to rotate a list in python?
Right now I have something like this:
26 Answers
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Possible to iterate backwards through a foreach?
I know I could use a for statement and achieve the same effect, but can I loop backwards through a foreach loop in C#?
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