keepdims行归一化

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	淡定的狐狸	1987ms	35.5 MiB	Python 3	395 Bytes	2026-10-8 15:32:24
AC	阳光的流星7509	2005ms	35.6 MiB	Python 3	292 Bytes	2026-10-12 15:32:44
AC	诚恳的仓鼠6063	2026ms	35.4 MiB	Python 3	241 Bytes	2026-10-7 23:24:47
AC	冷静的星星7870	2035ms	35.5 MiB	Python 3	271 Bytes	2026-10-5 22:13:34
AC	正经人谁打太极拳	2044ms	35.6 MiB	Python 3	251 Bytes	2026-10-5 21:02:06
AC	佐为	2071ms	35.5 MiB	Python 3	263 Bytes	2026-10-8 11:21:33
AC	幽默的歌手6480	2081ms	35.5 MiB	Python 3	335 Bytes	2026-10-14 17:54:37
AC	Cowalnut	2155ms	35.5 MiB	Python 3	365 Bytes	2026-10-8 11:04:27
AC	沉稳的熊猫2701	2179ms	35.4 MiB	Python 3	440 Bytes	2026-10-7 19:51:04