蓝桥杯 algo122 未名湖的烦恼 简单题

#include <iostream>

using namespace std;

int m, n, ans;

void solve(int m, int n, int cnt)

{

    if (m ==  && n == )

    {

        ans++;

        return;

    }

    if (cnt >  && n > ) solve(m, n-, cnt-);

    if (m > ) solve(m-, n, cnt+);

}

int main(int argc, char const *argv[])

{

    cin >> m >> n;

    solve(m, n, );

    cout << ans;

    return ;

}