望大佬解答
by Surge_of_Force @ 2021-07-26 18:05:18
盲猜爆栈(
by HanPi @ 2021-07-26 18:10:19
@[wapmhac](/user/230875)
```cpp
return a[x]=fd(x);
```
您确定不是 `fd(a[x])` ？
by Gokix @ 2021-07-26 18:13:53
fd函数写错了,
```
return a[x]=fd(x);
// ^ 应该为 a[x]
```
by HanPi @ 2021-07-26 18:14:28
还是只有三十分啊
@[Gokix](/user/150064)
by Surge_of_Force @ 2021-07-26 18:21:52
@[wapmhac](/user/230875) 查询的时候不对吧，判断条件应为`fd(x)==fd(y)`
by naroanah @ 2021-07-26 18:36:48