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What is the performance cost of having a virtual method in a C++ class?
Having at least one virtual method in a C++ class (or any of its parent classes) means that the class will have a virtual table, and every instance will have a virtual pointer.
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How to check if a value exists in an array in Ruby
I have a value 'Dog' and an array ['Cat', 'Dog', 'Bird'] .
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Accessing nested JavaScript objects and arays by string path
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Should I pass an std::function by const-reference?
Let's say I have a function which takes an std::function :
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Finding duplicates in O(n) time and O(1) space
Input: Given an array of n elements which contains elements from 0 to n-1, with any of these numbers appearing any number of times.
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What is the use of “ref” for reference-type variables in C#?
...nd that if I pass a value-type ( int , struct , etc.) as a parameter (without the ref keyword), a copy of that variable is passed to the method, but if I use the ref keyword a reference to that variable is passed, not a new one.
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Get final URL after curl is redirected
I need to get the final URL after a page redirect preferably with curl or wget.
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design a stack such that getMinimum( ) should be O(1)
This is one of an interview question. You need to design a stack which holds an integer value such that getMinimum() function should return the minimum element in the stack.
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What's the best way to do a backwards loop in C/C#/C++?
I need to move backwards through an array, so I have code like this:
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How to compile a 32-bit binary on a 64-bit linux machine with gcc/cmake
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