C++ hdu 2046 骨牌铺方格

#include<iostream>using namespace std;int main(){    int n, i;    while (cin >> n)    {        __int64 a[100] = { 1, 2 };             //注意定义__int64,当数据比较大时会超出int        for (i = 2; i < n; i++)        {            a[i] = a[i - 1] + a[i - 2];        }        cout << a[n - 1] << endl;    }    return 0;}