#include <iostream>
using namespace std ;

int main()
{
	int* ptr1 ;
	//Allocating space a single int
	//Old style C way
	ptr1 = (int*)malloc( sizeof(int) * 1 ) ;
	*ptr1 = 100 ;
	cout << *ptr1 << endl ;
	free( ptr1 ) ;


	//new style of C++
	ptr1 = new int ;
	*ptr1 = 100 ;
	cout << *ptr1 << endl ;
	delete ptr1 ;


	return(0) ;
}