第2题-分批均方下降

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	0Qlpq8y3gW	1826ms	37.4 MiB	Python 3	1.3 KiB	2026-10-3 21:16:27
AC	倔强的松鼠6892	1832ms	37.1 MiB	Python 3	1.4 KiB	2026-10-1 18:30:32
AC	TaZi	1871ms	37.1 MiB	Python 3	1.5 KiB	2026-9-29 20:49:24
AC	luti	1914ms	37.1 MiB	Python 3	1.5 KiB	2026-9-29 20:47:42