Project 01
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//Project01.cpp
//Date 08/27/2001
//Author Us

//main program and a function to calculate max 2 of 3

#include <iostream.h>


void swap(int &p, int &q)
  {
  if (p != q)
    {
    int temp = p;
    p = q;
    q = temp; 
    }
  }


void max2of3(int a, int b, int c, int &x, int &y)
  {
  for (int i=1; i<=2; i++)
    {
    if (a < b)
      swap(a, b);
    if (b < c)
      swap(b, c);
    }

  x = a;
  y = b;
  }

void main(void)
  {
  int x, y;

  max2of3(1, 3, 2, x, y);
  cout << "max2of3(1, 2, 3) = " << x << ' ' << y << endl;

  max2of3(1, 2, 3, x, y);
  cout << "max2of3(1, 2, 3) = " << x << ' ' << y << endl;

  max2of3(3, 1, 2, x, y);
  cout << "max2of3(1, 2, 3) = " << x << ' ' << y << endl;

  max2of3(3, 2, 1, x, y);
  cout << "max2of3(1, 2, 3) = " << x << ' ' << y << endl;

  max2of3(2, 1, 3, x, y);
  cout << "max2of3(1, 2, 3) = " << x << ' ' << y << endl;

  max2of3(2, 3, 1, x, y);
  cout << "max2of3(1, 2, 3) = " << x << ' ' << y << endl;

  }