Answer to Question #340321 in C++ for duh

Question

define a function that ask a user to enter three numbers and program display the largest using function with return value and argument

Answer 1

#include <iostream>
using namespace std;

double Largest();

int main() {
 
 cout<<"Largest: "<< Largest();
    cout<<endl;
    
return 0;
}
double Largest(){
    
    double n1,n2,n3;
    
    cout << "Enter three numbers: ";
    cin >> n1 >> n2 >> n3;

    if(n1 >= n2 && n1 >= n3)
        return n1;

    if(n2 >= n1 && n2 >= n3)
        return n2;
    
    if(n3 >= n1 && n3 >= n2)
        return n3;
}