大概率是未定义行为
by interestingLSY @ 2022-10-01 14:29:47
```plain
main.cpp: In function 'long long int TCS_query(int, int)':
main.cpp:141:1: warning: no return statement in function returning non-void [-Wreturn-type]
141 | }
| ^
```
by ud2_ @ 2022-10-01 14:54:01
@[interestingLSY](/user/25630) 我在 TCS_query() 函数里没有打 return ans ，sb了，谢老师（逃
by Yellow_and_Strong @ 2022-10-01 14:55:30
@[ud2_](/user/206953) 谢巨佬
by Yellow_and_Strong @ 2022-10-01 14:56:02