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 ;
}