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Determine if two rectangles overlap each other?

I am trying to write a C++ program that takes the following inputs from the user to construct rectangles (between 2 and 5): height, width, x-pos, y-pos. All of these rectangles will exist parallel to the x and the y axis, that is all of their edges will have slopes of 0 or infinity. ...
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How can I declare optional function parameters in Javascript? [duplicate]

Can I declare default parameter like 2 Answers 2 ...
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What is the fastest or most elegant way to compute a set difference using Javascript arrays?

Let A and B be two sets. I'm looking for really fast or elegant ways to compute the set difference ( A - B or A \B , depending on your preference) between them. The two sets are stored and manipulated as Javascript arrays, as the title says. ...
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Python “extend” for a dictionary

What is the best way to extend a dictionary with another one while avoiding the use of a for loop? For instance: 7 Answer...
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How can I select multiple columns from a subquery (in SQL Server) that should have one record (selec

I Know I can select a column from a subquery using this syntax: 5 Answers 5 ...
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How to avoid overflow in expr. A * B - C * D

I need to compute an expression which looks like: A*B - C*D , where their types are: signed long long int A, B, C, D; Each number can be really big (not overflowing its type). While A*B could cause overflow, at same time expression A*B - C*D can be really small. How can I compute it correctly...
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Simplest code for array intersection in javascript

What's the simplest, library-free code for implementing array intersections in javascript? I want to write 35 Answers ...
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How to concatenate two numbers in javascript?

I'd like for something like 5 + 6 to return "56" instead of 11 . 16 Answers 16 ...
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Sort array of objects by single key with date value

I have an array of objects with several key value pairs, and I need to sort them based on 'updated_at': 19 Answers ...
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How to check if two arrays are equal with JavaScript? [duplicate]

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