把栈换成 std::deque,然后再 upper_bound。
by Qiaoqia @ 2022-04-21 16:35:09
@[Qiaoqia](/user/499996) ~~不会用deque怎么办~~
by bloodstalk @ 2022-04-21 16:39:54
AC了,~~用个结构体记录相同个数就好了~~
by bloodstalk @ 2022-04-21 17:25:56