last index using recursion code example

Example 1: last index of a number using recursion

int rLookupAr (int array[], int size, int target)
{
    if(size<=0)   return -1;

    if(array[size-1] == target)
        return size-1;
    else
        return rLookupAr (array, size-1, target); //recurse

}

Example 2: last index of a number using recursion

int rLookupAr(int array[], int size, int target)
{
    if(size < 1) return -1;

    size--;
    if(array[size] == target) return size;

    return rLookupAr(array, size,target);
}