~cpp
#include<iostream>
using namespace std;
void main()
{
int*a=new int[4];
int*b=new int[4];
int*c=new int[4];//4
for(int i=0;i<4;i++)
{
a[i]=i;
b[i]=i;
c[i]=a[i]+b[i];
}
for(i=0;i<4;i++)
cout<<a[i]<<" + "<<b[i]<<" = "<<c[i]<<endl;
delete [] a;//a 겠.
delete [] b;
delete [] c;
a=NULL;//a .
b=NULL;
c=NULL;
}
//c////a=(int*)malloc(sizeof(int))
// a 게 a 고 .
//NULL=0 . .










