C++/Language/Comments

This is a single line comment

<source lang="cpp">

1. include <iostream>

using namespace std; int main() {

 int i;
 cout << "This is output.\n";  // this is a single line comment
 cout << "Enter a number: ";
 cin >> i;
 cout << i << " squared is " << i*i << "\n";
 return 0;

}

      </source>