Concept explainers
The following
#include <iostream>
using namespace std;
void func1(int &, int &) ;
void func2(int &, int &, int &);
void func3(int, int, int);
int main()
{
int x = 0, y = 0, z = 0;
cout << x << " " << y << z << endl;
func1(x, y);
cout << x << " " << y << z << endl;
func2(x, y, z);
cout << x << " " << y << z << endl;
func3(x, y, z);
cout << x << " " << y << z << endl;
return 0;
}
void func1(int &a, int &b)
{ cout << "Enter two numbers: ";
cin >> a >> b;
}
void func2(int &a, int &b, int &c)
{ b++;
c - -;
a = b + c;
}
void func3(int a, int b, int c)
{ a = b + c;
}
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