@[De_Zero](/user/207135) 试试```priority_queue```。
by jwcub @ 2020-01-15 19:29:40
$$^q_nd^m_x$$
by VTloBong @ 2020-01-15 19:30:31
by De_Zero @ 2020-01-15 19:31:30
你学OI学的不是时候啊。。。
by 1437_星尘 @ 2020-01-15 19:37:58