【深基4.例9】[NOIP2002 普及组] 级数求和

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	maxinyue	14ms	504 KiB	C++11(O2)	169 Bytes	2025-8-4 11:14:14
AC	duyusen	15ms	508 KiB	C++11(O2)	146 Bytes	2025-8-4 11:52:29
AC	tangyiqi	16ms	504 KiB	C++11(O2)	172 Bytes	2025-8-4 10:37:35
AC	lilyjiang	18ms	504 KiB	C++14(O2)	166 Bytes	2025-8-3 19:53:38