Find the output\" question - while printing the produc tin teh main, it should p

Question

Find the output" question - while printing the produc tin teh main, it should print the value of p, not product (there is no variable called product in the main fn). The correct statement is: cout<<"Product: "<<p;

int prod(int x, int &y, int &z) {

    int product;

    cout<<”Numbers before calculating product”<<x<<” “<<y<<” ”<<z<<endl;

    x++;

    y -= 2;

    z *= 3;

    product = x * y * z;

    cout<<”Numbers after calculating product”<<x<<” “<<y<<” ”<<z<<endl;

    return product;

}

int main() {

   int a,b,c;

   a= 4;

   b = 5;

   c = 2;

   cout<<”Numbers before calling function”<<a<<” “<<b<<” ”<<c<<endl;

   int p = product(a,b,c);

   cout<<”Numbers after function execution”<<a<<” “<<b<<” ”<<c<<endl;

   cout<<”Product “<<p;

   return 0;

}

Explanation / Answer

OP:

Numbers before calling function4 5 2
Numbers before calculating product4 5 2
Numbers after calculating product5 3 6
Numbers after function execution4 3 6
Product : 90

Program:

#include<iostream>
using namespace std;

int prod(int x, int &y, int &z) {

    int product;

    cout<<"Numbers before calculating product"<<x<<" "<<y<<" "<<z<<endl;

    x++;

    y -= 2;

    z *= 3;

    product = x * y * z;

    cout<<"Numbers after calculating product"<<x<<" "<<y<<" "<<z<<endl;

    return product;

}

int main() {

   int a,b,c;

   a= 4;

   b = 5;

   c = 2;

   cout<<"Numbers before calling function"<<a<<" "<<b<<" "<<c<<endl;

   int p = prod(a,b,c);

   cout<<"Numbers after function execution"<<a<<" "<<b<<" "<<c<<endl;

   cout<<"Product : "<<p;

   return 0;

}

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