西安交通大学915-2018-编程4

#include <iostream>
using namespace std;



int f(int n, int m) {
    if (n == 0 || n == 1 || m == 1) {
        return 1;
    }
    if (n < m) {
        return f(n, n);
    }
    return f(n - m, m) + f(n - 1, m);
}

int main() {
    int n = 0, m = 0;
    cout << "please input the number of ball and box:" << endl;
    cin >> n >> m;
    int ans = f(n, m);
    cout << "ans = " << ans << endl;
    return 0;
}