两个判断弄反了，应该前面的是 `s==0`，后面的是 `d==0`
by jqQt0220 @ 2023-10-06 20:31:41
你好像d==0和s==0的返回值错了
应该是如下：
```
#include <bits/stdc++.h>
using namespace std;
int akm(int s, int d)
{
if(s == 0)
{
return d+1;
}
if(d == 0)
{
return akm(s - 1,1);
}
return akm(s-1,akm(s,d-1));
}
int main()
{
int n, m;
cin >> n >> m;
cout << akm(n, m);
}
```
by hytallenxu @ 2023-10-06 20:32:02
if里面的s和d写反了导致递归函数一直无法结束，爆栈了
AC代码：
```cpp
#include <bits/stdc++.h>
using namespace std;
int akm(int s, int d)
{
if(s == 0)
{
return d+1;
}
if(d == 0)
{
return akm(s - 1,1);
}
return akm(s-1,akm(s,d-1));
}
int main()
{
int n, m;
cin >> n >> m;
cout << akm(n, m);
}
```
by susenyang @ 2023-10-06 20:32:27
@[autowaer](/user/855039) az
by hytallenxu @ 2023-10-06 20:32:56
@[hytallenxu](/user/726098) 比我快一步orz
by susenyang @ 2023-10-06 20:53:44