总 k 次方差 - Easy Ver. - Problem Statistics

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	linjianhao	214ms	5.4 MiB	C++20(O2)	2.6 KiB	2026-3-18 14:26:38
AC	CYMario	345ms	7 MiB	C++20(O2)	3.4 KiB	2025-10-22 18:53:33
AC	ThuCS	426ms	13.9 MiB	Python 3	557 Bytes	2026-3-8 13:39:30
AC	ThuCS	456ms	13.8 MiB	Python 3	413 Bytes	2026-3-9 0:11:04
AC	ThuCS	472ms	13.8 MiB	Python 3	397 Bytes	2026-3-9 0:10:29
AC	aw2656	498ms	14.2 MiB	Python 3	438 Bytes	2026-3-22 22:06:50
AC	aw2656	514ms	13.6 MiB	Python 3	438 Bytes	2026-3-22 22:07:10
AC	lily	644ms	19 MiB	Python 3	320 Bytes	2026-1-31 21:40:32
AC	lover520	732ms	13.6 MiB	Python 3	449 Bytes	2026-3-20 23:14:52