如果有多于 $r-l+1$ 个区间重叠那也有人说谎吧
by Umbrella_Leaf @ 2020-10-31 08:37:02
谢谢巨佬，窝去试试
by dalao_see_me @ 2020-10-31 08:37:38
@[ProgramsVSProblems](/user/233462) 谢谢巨佬，我ac了，orz
by dalao_see_me @ 2020-10-31 08:38:21
@[dalao_see_me](/user/246099) 同
by int08 @ 2023-09-13 17:47:22