求整数的和与均值

Status	Submit By	Time	Memory	Code	Submit At
AC	summer23041	19ms	796 KiB	271 Bytes	2023-10-5 16:39:17
AC	BC20260311	19ms	784 KiB	362 Bytes	2023-12-26 16:38:34
AC	BC20260080	20ms	804 KiB	320 Bytes	2024-4-5 12:05:54
AC	BC20260349	21ms	792 KiB	260 Bytes	2024-1-1 18:53:23
AC	CC20260060	21ms	728 KiB	195 Bytes	2023-11-12 8:32:56
AC	BC20260030	22ms	756 KiB	279 Bytes	2024-4-13 15:29:13
AC	BC20260085	24ms	728 KiB	259 Bytes	2024-5-13 13:18:54
AC	C20250070	26ms	728 KiB	289 Bytes	2024-5-18 11:45:27