OrinLoong @ 2024-11-13 15:40:19
when？who？why？
by yanzihe @ 2024-11-19 08:10:22
建议升紫
本题最直接的做法是线段树合并，线段树合并模板都是紫，这题评蓝不合适吧。
by ivyjiao @ 2024-11-19 13:25:23
@recollect_i @Daniel_lele @jifbt
by ivyjiao @ 2024-11-19 15:25:47
@Rainbow_qwq
by Rainbow_qwq @ 2024-11-19 15:26:40
升紫!!
by 未来姚班zyl @ 2024-11-21 22:00:01
额额额感觉这题蓝紫都说的过去