21. Square of a Number

#include <iostream>
using namespace std;

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