21. Square of a Number

#include <iostream>
using namespace std;

// your code here: define macro SQUARE(x)
// your code here: define inline function square(int x)
#define SQUARE(x) (x*x)

int square(int x)
{
   return x*x;
}

int main() {
   int n;
   cin >> n;
   cout << "Macro Square: " << SQUARE(n) << "\n";
   cout << "Inline Square: " << square(n) << "\n";
   return 0;
}