code to calculate largest of 3 numbers in C++

 #include <iostream>

using namespace std;

// code to find largest of 3 numbers

int main(){

    int a, b, c;

    cout <<"enter a : ";

    cin >> a;

    cout <<"enter b : ";

    cin >> b;

    cout <<"enter c : ";

    cin >> c;

    if(a >= b && a >= c){

        cout <<"Largest is a = " << a << endl;

    } else if(b >= c){

        cout << "Largest is b = " << b << endl;

    } else {

        cout << "Largest is c = " << c << endl;

    }

    return 0;

}