HDU 1028 —— Ignatius and the Princess III

原题：http://acm.hdu.edu.cn/showproblem.php?pid=1028

#include<iostream>
using namespace std;
const int maxn = 250;
int arr[maxn], tmp[maxn];
int n;
int main(){
    while(cin>>n){
        for(int i = 0;i<=n;i++){
            arr[i] = 1;
            tmp[i] = 0;
        }
        for(int i = 2;i<=n;i++){
            for(int j = 0;j<=n;j++){
                for(int k = 0;k+j<=n;k+=i)
                    tmp[j+k] += arr[j];
            }
            for(int j = 0;j<=n;j++){
                arr[j] = tmp[j];
                tmp[j] = 0;
            }
        }
        cout<<arr[n]<<endl;
    }
    return 0;
}