29_new delete연산자

#include <iostream>
using namespace std;

void main()
{
 int *arr1 = new int; //4byte, 쓰레기
 int *arr2 = new int(3); //4byte, 초기화
 int *arr3 = new int[3]; //12byte, 쓰레기

 delete arr1;
 delete arr2;
 delete [] arr3;
}