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Thread: Algorithm for permutations

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    Member Scorks's Avatar
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    Default Algorithm for permutations

    Consider the problem of generating all permutations of length k of a set of cardinality n, where n is a non-negative integer number and k < (or) = n is a non negative integer number.

    So far, I have the method:

    methodB (int[] a) {
    if |a| = 1   return {a}
    else
    sol = { }
    for every x in a {
    sub = a  {x}
    block = method (sub)
    for each element in block, insert x in front of it
    }
    sol = sol U block
    }

    But I know this doesn't really solve the problem, as I need to make it for a predefined space of K. Anyone able to help me out?


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    Default Re: Algorithm for permutations

    I'm a bit lost in the math jargon and don't want to study up on it. Can you put the assignment into plain English?

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    Default Re: Algorithm for permutations

    I got it pretty soon afterwards. Thanks anyways.

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