相当于有i个人等了a[n-1].www的时间,累加就可以了
by DDDumpling @ 2023-09-07 19:22:19
a[n-i].www不是a[n-1].www打错了
by DDDumpling @ 2023-09-07 19:24:28
@[DDDumpling](/user/997684)
谢谢!!!
by Mars_wq @ 2023-09-07 22:02:07