Question

• C++
• write a function named subtract that takes two integers as parameters and returns the result of subtracting the second number from the first.
  • i.e. int1 - int2
• Change subtract to have default arguments for its two parameters. Pick whatever non-zero numbers you would like.
• Write a prototype for subtract before main so the program runs without error.
• I cant figure out the part where you pass no parameters, I've tried to set defailt values for the parameters but it results in a compile error.

Answer 1

#include<iostream>

using namespace std;

// declare prototype for function

int subtract(int int1, int int2);

int main()

{

    int int1, int2;

   

    cout<<"Enter 2 numbers : ";

   

    // get user input

    cin>>int1>>int2;

   

    cout<<"Subtract : "<<subtract(int1, int2);

   

    return 0;

}

int subtract(int int1, int int2)

{

    return int1 - int2;

}

Sample Output