Cu
by 401rk8 @ 2021-12-09 10:54:30
Cu，我特判了 l1,l2 的大小关系按顺序来 split 也挂了。
```cpp
It itl1 , itr1 , itl2 , itr2;
if(l1 < l2)itr2 = Split(r2 + 1) , itl2 = Split(l2) , itr1 = Split(r1 + 1) , itl1 = Split(l1);
else itr1 = Split(r1 + 1) , itl1 = Split(l1) , itr2 = Split(r2 + 1) , itl2 = Split(l2);
```
by 369Pai @ 2023-03-28 20:08:41