【例7.1】保留3位小数

状态	递交者	时间	内存	语言	代码	递交时间
AC	20240639	7ms	512 KiB	C++17	139 Bytes	2026-1-23 13:03:55
AC	20230313	7ms	512 KiB	C++17	141 Bytes	2026-1-16 12:42:43
AC	Luo	8ms	512 KiB	C++17	137 Bytes	2026-1-23 12:52:58
AC	20240416	8ms	516 KiB	C++17	144 Bytes	2026-1-16 12:41:29
AC	20230336	8ms	512 KiB	C++17	130 Bytes	2026-1-16 12:46:32
AC	Luckyu	8ms	760 KiB	C++98	135 Bytes	2026-1-4 23:01:23
AC	20240622	8ms	516 KiB	C++17	147 Bytes	2026-1-25 20:15:11
AC	20240414	8ms	516 KiB	C++17	138 Bytes	2026-1-16 12:41:38
AC	20240633	8ms	512 KiB	C++17	147 Bytes	2026-1-16 12:49:34
AC	20230330	8ms	512 KiB	C++17	141 Bytes	2026-1-16 12:40:57
AC	20240306	9ms	512 KiB	C++17	127 Bytes	2026-1-23 12:59:13