C++动态数组的实现

#include <iostream>
using namespace std;
int main()
{
    int n;
    while(cin>>n)
    {
        int *p=new int[n+1];
        p[0]=0;
        p[1]=1;
        for(int i=2;i<=n;i++)
        {
            p[i]=p[i-1]+p[i-2];
        }
    cout<<p[n]<<endl;
    }
    return 0;
}