Thread: Parallel arrays vs array of structs

  1. #1
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    Apr 2012

    Sorting Parallel Arrays

    How would you sort 5 parallel arrays in ascending order?
    Last edited by Brian Swisher; 04-03-2012 at 11:13 PM.

  2. #2
    C++ Witch laserlight's Avatar
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    Oct 2003
    I would prefer an array of structs as it is easier to handle and reason about, plus it easily allows for the use of standard algorithms like std::sort.
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
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  3. #3
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    If I understand what you're talking about right, you basically want to create a sixth temporary array that tracks the position of where all the original elements are. Then sort whichever array you're basing the sort off of. As you do this, keep up with the changes in the temporary array. Once you're done sorting the first, use the sixth to sort two through five.

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