数组的区间和

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	heliangyu	3ms	9 MiB	C++98	294 Bytes	2025-2-9 10:52:12
AC	xyls	3ms	9 MiB	C++98	238 Bytes	2025-2-9 0:26:32
AC	liuhaoqi	3ms	9 MiB	C++98	249 Bytes	2025-2-9 11:00:35
AC	huangshengfeng	3ms	9.1 MiB	C++98	259 Bytes	2025-11-14 19:46:09
AC	baoyufu	4ms	9.1 MiB	C++98	256 Bytes	2025-11-14 19:49:15
AC	jiangxingxing	5ms	9.1 MiB	C++98	223 Bytes	2025-11-22 10:15:32
AC	luyixin	5ms	9.1 MiB	C++98	225 Bytes	2025-11-22 10:10:38