【例20.1】范围判断

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	劳钰峰	10ms	504 KiB	C++98	135 Bytes	2025-10-1 10:07:01
AC	庞少卿	10ms	760 KiB	C++98	143 Bytes	2025-10-16 21:08:18
AC	朱健安	10ms	504 KiB	C++98	164 Bytes	2025-11-18 16:32:27
AC	谢钰莹	11ms	508 KiB	C++98	135 Bytes	2025-11-20 22:45:56
AC	朱梓霖	11ms	508 KiB	C++98	123 Bytes	2025-10-1 10:23:52
AC	冼子童	11ms	504 KiB	C++98	136 Bytes	2025-12-15 19:47:49
AC	陈沛宜	11ms	504 KiB	C++98	138 Bytes	2025-11-20 17:06:47
AC	朱子轩	12ms	536 KiB	C++14(O2)	152 Bytes	2025-9-10 19:57:29
AC	李文茵	12ms	504 KiB	C++98	131 Bytes	2025-10-28 19:48:15
AC	胡弘宣	12ms	512 KiB	C++98	147 Bytes	2026-3-25 10:07:40
AC	张若煊	13ms	556 KiB	C++98	126 Bytes	2025-9-23 21:15:04