H.C.F and L.C.M in C++

#include <iostream>
 using namespace std;
int main() {
  int a, b, x, y, t, gcd, lcm;

  cout<<"Enter two integers\n";
  cin>>x>>y;

  a = x;
  b = y;

  while (b != 0) {
    t = b;
    b = a % b;
    a = t;
  }

  gcd = a;
  lcm = (x*y)/gcd;

  cout<<"Greatest common divisor of "<<x<<" and "<<y<<"=\n"<<gcd;
  cout<<"\nLeast common multiple of"<<x<<" and"<<y<<" =\n"<<lcm;

  return 0;
}