//---------------------------------------------------
// Purpose: Demonstrate functions and parameters
// Author:  John Gauch
//---------------------------------------------------
#include <iostream>
using namespace std;

void swap1(int &A, int &B)
{
   cout << A << " " << B << endl;
   int temp = A;
   A = B;
   B = temp;
   cout << A << " " << B << endl;
}

int compare1(int X, int Y, int Z)
{
   cout << X << " " << Y << " " << Z << endl;
   if (X > Y)
      swap1(X, Y);
   if (X > Z)
      swap1(X, Z);
   cout << X << " " << Y << " " << Z << endl;
   return X;
}

void swap2(int &A, int &B)
{
   cout << A << " " << B << endl;
   if (A > B)
   {
      int temp = A;
      A = B;
      B = temp;
   }
   cout << A << " " << B << endl;
}

int compare2(int X, int Y, int Z)
{
   cout << X << " " << Y << " " << Z << endl;
   swap2(X, Y);
   swap2(Y, Z);
   cout << X << " " << Y << " " << Z << endl;
   return Z;
}

int main()
{
   cout << "\nPart A\n";
   int U = 5;
   int V = 3;
   swap1(U,V);

   cout << "\nPart B\n";
   int Result1 = compare1(4, 9, 1);
   cout << "Result1: " << Result1 << endl;

   cout << "\nPart C\n";
   U = 7;
   V = 1;
   swap2(U,V);

   cout << "\nPart D\n";
   int Result2 = compare2(6, 8, 2);
   cout << "Result2: " << Result2 << endl;
   
   return 0;
}