```cpp
3
1 2 1
```
答案是``1``
但是您的输出是``2``
by djh123 @ 2019-01-17 11:33:09
@[Matsushiro_Eurya](/space/show?uid=17757)
by djh123 @ 2019-01-17 11:33:24
@[djh123](/space/show?uid=44777)
过去了...脑抽一下，排序函数没有判重qwq
谢谢dalao orz
by WhiteEurya @ 2019-01-17 11:43:40