为什么当我输入的数字过大时输出会有负数

Question

#include <iostream>
using namespace std;
int main()
{
    int N;
    cin >> N;
    int* p = new int[N];
    p[0] = 0, p[1] = 1;
    int n;
    for (n = 2; n < N; n++)
        p[n] = p[n - 1] + p[n - 2];
    for (n = 0; n < N; n++)
    {
        cout << p[n] << ",";
        if ((n + 1) % 8 == 0) cout << endl;
    }
    delete[]p;
    return 0;
}

如图
![img](https://img-mid.csdnimg.cn/release/static/image/mid/ask/571082797236116.png "=600 #left")

Answer 1

如图