Computes the size of variable using sizeof operator

#include <stdio.h>

int main()
{
  int a;
  float b;
  double c;
  char d;

  printf("Size of int: %d bytes\n",sizeof(a));
  printf("Size of float: %d bytes\n",sizeof(b));
  printf("Size of double: %d bytes\n",sizeof(c));
  printf("Size of char: %d byte\n",sizeof(d));

  return 0;
}