Question

Write three functions, float getNum(), float add(float, float), void outSum(float); that asks user for two numbers, finds the sum of two numbers, and displays the sum repeatedly in a main program until the user enter "0" for either one of the numbers. (In C++)

Answer 1

#include <iostream>

using namespace std;

float getNum(){
    float n;
    cout<<"Enter a number: ";
    cin>>n;
    return n;
}

float add(float a, float b){
    return a+b;
} 

void outSum(float f){
    cout<<"Sum: "<<f<<endl;
}

int main()
{
    outSum(add(getNum(),getNum()));
    return 0;
}

$\color{blue}\underline{Output:}$

Enter a number: 4.5 Enter a number: 6.7 Sum: 11.2