而且原题写的是500ms，怎么洛谷就成1000ms了？
by songhongyi @ 2020-11-16 08:50:33
orz shy
by BinDir0 @ 2020-11-16 17:19:33
@[chen_zhe](/user/8457)
by songhongyi @ 2020-11-16 20:01:28