IPE Lab 7A

#include <iostream>
using namespace std;

double sqftTosqmetre(double dis);
double sqmetresToacres(double dis);
double minimum(double x, double y);
double maximum(double x, double y);

int main()
{
      double sqmetre , acres, sqfeet, x1;
      double tot=0, tot1=0, min=0, max=0 ;
      cout << "Enter area in sq. feet (-999 to stop) : ";
                cin >> sqfeet;
      if (sqfeet != (-999))
            min = sqfeet;
      while (sqfeet != (-999))
      {
            x1 = sqfeet;
            tot = tot + sqfeet;
            sqmetre = sqftTosqmetre(sqfeet);
            tot1 = tot1 + sqmetre;
            acres = sqmetresToacres(sqmetre);
            min = minimum(min,x1);
            max = maximum(max,x1);
            cout << "equals to = " << sqmetre << "sq. metres"
                  << endl << "equals to = " << acres << " acres" << endl;
            cout << "Enter area in sq. feet : ";
            cin >> sqfeet;
      }//while
     
      sqmetre = sqftTosqmetre(tot);
      acres = sqmetresToacres(tot1);
      cout << endl << "Total Area = " << tot << "sq. feet, " << sqmetre
            << " sq. metres, " << acres << " acres " << endl;
      cout << "Minimum is : " << sqmetresToacres(sqftTosqmetre(min)) << " acres & "
            << "Maximum is : " << sqmetresToacres(sqftTosqmetre(max)) << " acres" <<endl << endl;
      return 0;
}//main

double sqftTosqmetre(double dis)
{
      return dis*0.092903;
}//sqftTosqmetre

double sqmetresToacres(double dis)
{
      return dis/4046.856;
}//sqmetreToacres

double minimum(double x, double y)
{
      if (x<y)
            return x;
      else
            return y;
}

double maximum(double x, double y)
{
      if (x>y)
            return x;
      else
            return y;
}