how to make an if statement in c++ code example

Example 1: C++ if else

#include<iostream>
using namespace std;

int main()
{
    int grade;

    cin >> grade;

    if( grade >= 60 )
        cout << "You Pass!" << endl;
    else
        cout << "You Fail..." << endl;

    return 0;
}

Example 2: if c++

#include<iostream>
using namespace std;
int main(){
	int eta; 
	cout<<"Ciao Utente inserisci la tua eta'! "<<"\n";
	cin>>eta;
	if(eta >= 18){
		cout<<"Benvenuto al cinema!";
	}
}