@[fty123456___](/user/993688)
```cpp
#include<iostream>
using namespace std;
int a,b;
int x(int a,int b){
if(a==0) return b+1;
else if(a>0&&b==0) return x(a-1,1);
else return x(a-1,x(a,b-1));
}
int main(){
cin>>a>>b;
cout<<x(a,b);
return 0;
}
```
by ZTT1014 @ 2024-03-20 22:18:23
你的b没输入上值，还有第5行不应该是b++。
by ZTT1014 @ 2024-03-20 22:22:59
@[ZTT1014](/user/1047386) 谢谢大佬
by fty123456___ @ 2024-03-23 14:26:38
```cpp
#include<bits/stdc++.h>
using namespace std;
int Ackermann(int m,int n)
{
if(m == 0)
{
return n + 1;
}
else
if(m > 0 && n == 0)
{
return Ackermann(m - 1 , 1);
}
if(m > 0 && n > 0)
{
return Ackermann(m - 1, Ackermann(m , n - 1));
}
}
int main()
{
int m , n;
cin >> m >> n;
cout << Ackermann(m , n) << endl;
return 0;
}
by Jason101 @ 2024-09-17 18:45:04