删除单词后缀

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	chq315	8ms	13.1 MiB	C++17	302 Bytes	2023-7-27 16:10:50
AC	liuyukai	15ms	13.5 MiB	C++11(O2)	365 Bytes	2025-3-28 19:04:57
AC	sunyian	16ms	13.5 MiB	C++11(O2)	424 Bytes	2025-3-28 19:00:14
AC	huyushuo	19ms	13.5 MiB	C++11(O2)	365 Bytes	2025-3-28 19:01:46
AC	dongyantao	20ms	13.5 MiB	C++11(O2)	306 Bytes	2025-3-28 13:30:12
AC	songyitian	21ms	13.5 MiB	C++11(O2)	365 Bytes	2025-3-28 18:56:33
AC	majiatong	21ms	13.5 MiB	C++11(O2)	384 Bytes	2025-3-28 19:00:05
AC	佟佳奇	23ms	12.6 MiB	C++11(O2)	349 Bytes	2025-8-8 14:21:55