【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	u26013	3ms	256 KiB	C	105 Bytes	2026-10-14 22:05:23
AC	u26006	3ms	256 KiB	C	101 Bytes	2026-10-11 13:13:27
AC	u26043	4ms	256 KiB	C	74 Bytes	2026-11-7 22:06:59
AC	u26020	4ms	256 KiB	C	87 Bytes	2026-10-25 12:18:09
AC	u26027	4ms	256 KiB	C	87 Bytes	2026-10-25 22:52:52
AC	u26032	4ms	512 KiB	C	102 Bytes	2026-10-29 12:57:17
AC	u26054	4ms	256 KiB	C	85 Bytes	2026-10-17 22:02:12
AC	u26022	4ms	256 KiB	C	102 Bytes	2026-10-26 0:05:43
AC	u26051	4ms	256 KiB	C	91 Bytes	2026-10-27 21:42:16
AC	u26011	4ms	256 KiB	C	103 Bytes	2026-10-13 16:27:58
AC	u26002	4ms	256 KiB	C	89 Bytes	2026-10-11 20:29:52
AC	u26045	4ms	256 KiB	C	105 Bytes	2026-10-23 19:38:58
AC	u26004	4ms	256 KiB	C	104 Bytes	2026-10-11 21:36:47
AC	u26047	4ms	256 KiB	C	94 Bytes	2026-10-17 0:19:26
AC	u26046	4ms	512 KiB	C	75 Bytes	2026-10-18 15:52:21
AC	u2605	8ms	512 KiB	C++98	122 Bytes	2026-4-4 10:04:59
AC	u2606	8ms	512 KiB	C++11	187 Bytes	2026-4-27 14:37:22
AC	u2607	8ms	512 KiB	C++98	156 Bytes	2026-4-6 11:02:47
AC	u2616	8ms	512 KiB	C++14	166 Bytes	2026-4-25 9:26:52
AC	u26009	8ms	512 KiB	C++98	100 Bytes	2026-10-11 21:31:14
AC	u2611	8ms	512 KiB	C++98	135 Bytes	2026-4-25 14:16:21
AC	u2603	9ms	512 KiB	C++98	107 Bytes	2026-4-5 12:52:07
AC	u26015	9ms	512 KiB	C++98	105 Bytes	2026-10-27 22:37:25
AC	最后的冬日	9ms	564 KiB	C++17	158 Bytes	2026-7-26 16:40:27
AC	u2610	9ms	512 KiB	C++98	158 Bytes	2026-4-18 10:12:45
AC	u2617	9ms	512 KiB	C++14	124 Bytes	2026-4-20 21:21:38
AC	u2604	9ms	512 KiB	C++11	163 Bytes	2026-4-5 9:43:54
AC	u26026	9ms	512 KiB	C++98	103 Bytes	2026-11-1 20:46:27
AC	u2608	9ms	512 KiB	C++98	174 Bytes	2026-4-19 19:51:52
AC	u2602	9ms	512 KiB	C++11	140 Bytes	2026-4-4 20:32:19