解题

#include<iostream>
#include<cmath>
using namespace std;
int a(int m,int n){
if(m0) return n+1;
else if(m>0&&n0) return a(m-1,1);
else return a(m-1,a(m,n-1));
}
int main(){

int n,m;
cin>>m>>n;
cout<<a(m,n)<<endl;
return 0;

}