练70.2 判断字符串是否为回文

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	wjy	7ms	540 KiB	C++17	185 Bytes	2026-1-31 11:02:20
AC	丁广昊:)	7ms	512 KiB	C++98	196 Bytes	2026-1-31 11:01:44
AC	fzk	8ms	512 KiB	C++17(O2)	194 Bytes	2026-1-31 11:01:57
AC	高翊宸	8ms	512 KiB	C++98	186 Bytes	2026-1-31 11:22:33