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UICollectionView's cellForItemAtIndexPath is not being called
Only my second time using UICollectionView's and perhaps I have bitten off more than I can chew but nevertheless:
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Negative weights using Dijkstra's Algorithm
...rithm you have suggested will indeed find the shortest path in this graph, but not all graphs in general. For example, consider this graph:
Assume the edges are directed from left to right as in your example,
Your algorithm will work as follows:
First, you set d(A) to zero and the other dista...
What is a “callable”?
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A callable is anything that can be called.
The built-in callable (PyCallable_Check in objects.c) checks if the argument is either:
an instance of a class with a __call__ method or
is of a type that has a non null tp_call (c stru...
Reusable library to get human readable version of file size?
There are various snippets on the web that would give you a function to return human readable size from bytes size:
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How to initialize const member variable in a class?
When I am trying to initialize the const member variable t with 100. But it's giving me the following error:
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What's the fastest way to loop through an array in JavaScript?
I learned from books that you should write for loop like this：
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#pragma pack effect
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#pragma pack instructs the compiler to pack structure members with particular alignment. Most compilers, when you declare a struct, will insert padding between members to ensure that they are aligned to appropriate addresses in memory (usually a multiple of the type's size). This...
How to create a self-signed certificate with OpenSSL
I'm adding HTTPS support to an embedded Linux device. I have tried to generate a self-signed certificate with these steps:
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What are all the common undefined behaviours that a C++ programmer should know about? [closed]
What are all the common undefined behaviours that a C++ programmer should know about?
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ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
Why does the following code raise the exception shown below?
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