[NOIP 2002 普及组] 级数求和

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	C20250069	16ms	808 KiB		285 Bytes	2023-10-15 12:42:07
AC	BC20260096	17ms	680 KiB		182 Bytes	2023-12-4 15:18:51
AC	CC20260194	17ms	704 KiB		187 Bytes	2023-12-2 8:06:02
AC	CC20260060	19ms	768 KiB		158 Bytes	2023-11-12 9:20:25
AC	C20250070	24ms	808 KiB		208 Bytes	2024-5-18 12:18:28
AC	CC20260161	25ms	848 KiB	C++17(O2)	275 Bytes	2026-3-21 6:59:19