Thread: Making a Selection Sort into a Recursive Function with a Vector

  1. #1
    Registered User
    Join Date
    May 2011

    Making a Selection Sort into a Recursive Function with a Vector

    Just need to convert my working selection sort function into a recursive one. I don't understand recursive functions very well so any explanation or assistance is much appreciated.

    sort(vector<int> unsorted_list)
        int temp, min;
        for( int x = 0; x < unsorted_list.size()-1; x++)
            min = x;
            for (int j = min+1; j < unsorted_list.size(); j++)
                if (unsorted_list[j] < unsorted_list[min])
                min = j;
                temp = unsorted_list[x];
                unsorted_list[x] = unsorted_list[min];
                unsorted_list[min] = temp;
        return unsorted_list;

    PS: Declaration needs to remain the same. I realize that only one input is obscure but that is required -.-
    Last edited by bwright; 05-10-2011 at 03:38 PM.

  2. #2
    Algorithm Dissector iMalc's Avatar
    Join Date
    Dec 2005
    New Zealand
    It cant be done with that as the declaration.
    First off it's missing the type and thus cannot compile, secondly there is no way for the sorted data to leave the function.
    Lastly, passing a vector by value is a bad idea.
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