3.cpp

/*
Write a program that calculates the average of up to 100 English distances input by the
user. Create an array of objects of the Distance class, as in the ENGLARAY example in
this chapter. To calculate the average, you can borrow the add_dist() member function
from the ENGLCON example in Chapter 6. You’ll also need a member function that divides
a Distance value by an integer. Here’s one possibility:
*/

//author @Nishant

#include <bits/stdc++.h>
using namespace std;

class Distance{	
    int feet;
    float inches;
	public:
		Distance(): feet(0), inches(0) { };
		Distance(int f, int i): feet(f), inches(i) { };
		void getdist();
		void showdist() const;
		void add_dist(Distance d);
		void div_dist(int k);
};

int main(){
	const int MAX = 100;
	Distance d[MAX], sum;
	int n = 0;
	char ch;
	do{
		d[n].getdist();
		sum.add_dist(d[n++]);
		cout << "Want to continue (y/n): ";
		cin >> ch;
		cout << endl;
	} while(ch != 'n');
	sum.div_dist(n);
	sum.showdist();
	return 0;
}

void Distance::getdist(){
	cout << "Enter feet: ";
	cin >> feet;
	cout << "\nEnter inches: ";
	cin >> inches;
}

void Distance::showdist() const{
	cout << feet << "\'-" << inches << '\"' << endl;
}

void Distance::add_dist(Distance d){
	feet += d.feet;
	inches += d.inches;
	if(inches > 11){
		inches -= 12;
		feet++;
	}
}

void Distance::div_dist(int k){
	int total = feet * 12 + inches;
	total /= k;
	feet = total / 12;
	inches = total % 12;
}