@[xingff](/user/971465) 函数里if（k<0）的判断要改成k<=0
这样即可AC
by 08290177ty @ 2024-02-21 16:10:02
14行 k<0改为k<=0
by tsongyuanmq @ 2024-02-21 16:14:39
谢大佬，已AC
by xingff @ 2024-02-21 16:29:43