【例7.1】保留3位小数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	Zzzzsd	5ms	764 KiB	C++14	129 Bytes	2025-8-6 13:07:23
AC	严梓瑄	5ms	760 KiB	C++14(O2)	152 Bytes	2025-8-6 16:28:39
AC	Harry	6ms	504 KiB	C++14	139 Bytes	2025-7-24 17:16:27
AC	周天心qcx	7ms	504 KiB	C++14(O2)	132 Bytes	2025-7-8 8:57:43
AC	Oxygen	7ms	504 KiB	C++14	190 Bytes	2025-5-27 18:26:17
AC	李沐一qcx	7ms	508 KiB	C++14(O2)	146 Bytes	2025-7-8 8:57:41
AC	李穆萨1.04	7ms	504 KiB	C++14(O2)	113 Bytes	2025-7-9 15:31:21
AC	刘喻蔓	7ms	504 KiB	C++14(O2)	142 Bytes	2025-7-4 10:31:36
AC	姚辰x1y2025	7ms	504 KiB	C++14(O2)	134 Bytes	2025-7-4 10:46:02
AC	maochengjun	7ms	504 KiB	C++14	141 Bytes	2025-7-9 15:39:03
AC	王思懿	7ms	760 KiB	C++14(O2)	144 Bytes	2025-7-4 9:53:24
AC	陈珑予xly2025	7ms	548 KiB	C++14(O2)	119 Bytes	2025-7-4 9:32:52
AC	罗川皓xly2025	7ms	508 KiB	C++14(O2)	142 Bytes	2025-7-4 11:16:24
AC	李俊诚	7ms	504 KiB	C++14(O2)	123 Bytes	2025-7-17 10:35:06
AC	白力予	7ms	504 KiB	C++14(O2)	145 Bytes	2025-7-4 11:07:53
AC	林语涵	7ms	504 KiB	C++14(O2)	135 Bytes	2025-8-8 11:08:48
AC	马誉纯	7ms	504 KiB	C++14(O2)	177 Bytes	2025-7-5 13:23:35
AC	_anguanie_	8ms	508 KiB	C++14(O2)	150 Bytes	2025-7-4 9:20:33
AC	张霖桐	8ms	508 KiB	C++14(O2)	152 Bytes	2025-7-9 19:48:55
AC	马康智xly2025	8ms	592 KiB	C++14(O2)	123 Bytes	2025-8-8 16:45:37
AC	ZYJing2012	8ms	760 KiB	C++14(O2)	146 Bytes	2025-7-4 10:40:28
AC	yh2025	8ms	504 KiB	C++14(O2)	149 Bytes	2025-7-25 11:38:58
AC	Mr_Wr	8ms	528 KiB	C++14(O2)	141 Bytes	2025-7-4 9:32:48
AC	张叶朵	8ms	504 KiB	C++14(O2)	142 Bytes	2025-7-4 10:06:27
AC	徐尔蔓qcx	8ms	508 KiB	C++14(O2)	150 Bytes	2025-7-8 8:52:05
AC	jinxijun	8ms	504 KiB	C++14	139 Bytes	2025-7-27 14:41:43
AC	刘小琳	8ms	508 KiB	C++14	118 Bytes	2025-7-5 10:02:18
AC	周宝熠xly2025	8ms	504 KiB	C++14(O2)	138 Bytes	2025-7-4 10:11:10
AC	许家畅xly2025	8ms	760 KiB	C++14(O2)	147 Bytes	2025-7-4 11:06:12
AC	pcx...	8ms	508 KiB	C++14	132 Bytes	2025-7-24 14:53:51
AC	黄昭明xly2025	8ms	504 KiB	C++14(O2)	146 Bytes	2025-7-7 18:51:51
AC	zzx	8ms	760 KiB	C++14	145 Bytes	2025-7-22 18:38:09
AC	chenqiugu	8ms	536 KiB	C++14	179 Bytes	2025-7-17 19:13:23
AC	yzh1217	8ms	536 KiB	C++14(O2)	133 Bytes	2024-8-13 15:42:20
AC	杨锦莲xly2025	8ms	532 KiB	C++14(O2)	146 Bytes	2025-7-4 13:54:23
AC	何庭杨xly2025	8ms	760 KiB	C++14(O2)	138 Bytes	2025-7-4 10:23:33
AC	xzh13579	8ms	508 KiB	C++14(O2)	144 Bytes	2025-7-4 11:06:53
AC	简怀墨xly2025	8ms	508 KiB	C++14(O2)	138 Bytes	2025-7-4 11:06:50
AC	李锦华	8ms	504 KiB	C++14(O2)	146 Bytes	2025-7-24 19:40:32
AC	谭皓骞xly2025	8ms	508 KiB	C++14(O2)	144 Bytes	2025-7-5 8:56:06
AC	李雨诺129xly2025	8ms	504 KiB	C++14(O2)	7.7 KiB	2025-7-4 11:06:51
AC	王鸿畅xly2025	8ms	504 KiB	C++14(O2)	146 Bytes	2025-7-4 10:52:01
AC	zzy15924600533	8ms	504 KiB	C++14(O2)	143 Bytes	2025-7-22 21:00:11
AC	陆昊宇	8ms	496 KiB	C++14(O2)	163 Bytes	2025-7-9 19:29:35
AC	邵馨羽qcx	8ms	508 KiB	C++14(O2)	146 Bytes	2025-7-8 8:56:35
AC	张芷若xly2025	8ms	504 KiB	C++14(O2)	144 Bytes	2025-7-4 10:16:21
AC	卢皓禹xly2025	8ms	504 KiB	C++14(O2)	146 Bytes	2025-7-4 11:06:59
AC	肖钰曦	8ms	768 KiB	C++14(O2)	142 Bytes	2025-8-7 21:00:42
AC	王冠楠xly2025	8ms	504 KiB	C++14(O2)	129 Bytes	2025-7-4 9:56:30
AC	李承兴	8ms	508 KiB	C++14(O2)	123 Bytes	2025-7-5 10:09:15
AC	杨晨希xly2025	8ms	504 KiB	C++14(O2)	142 Bytes	2025-7-4 11:09:30
AC	后程兮qcx	8ms	504 KiB	C++14(O2)	166 Bytes	2025-7-8 15:28:54
AC	Lyd1107	8ms	508 KiB	C++14	192 Bytes	2025-7-22 18:04:35
AC	许默xly2025	8ms	504 KiB	C++14(O2)	142 Bytes	2025-7-4 10:45:43
AC	王昱尊xly2025	9ms	760 KiB	C++14(O2)	138 Bytes	2025-7-24 21:44:51
AC	向奕锦1.04	9ms	508 KiB	C++14(O2)	142 Bytes	2025-7-5 11:09:06
AC	钟雨辰xly2025	9ms	504 KiB	C++14(O2)	134 Bytes	2025-7-4 9:59:37
AC	w20120404	9ms	504 KiB	C++14(O2)	141 Bytes	2025-7-28 2:05:27
AC	hmtzl666	9ms	504 KiB	C++14(O2)	143 Bytes	2025-7-4 10:05:59
AC	shtian	9ms	764 KiB	C++98	132 Bytes	2024-7-11 12:59:56
AC	杨家齐xly2025	9ms	504 KiB	C++14(O2)	135 Bytes	2025-7-4 10:01:12
AC	李衍树xly2025	9ms	508 KiB	C++14(O2)	137 Bytes	2025-7-4 11:04:23
AC	李轩逸xly2025	9ms	504 KiB	C++14(O2)	136 Bytes	2025-7-4 10:24:10
AC	string_dbr	9ms	508 KiB	C++14(O2)	117 Bytes	2025-5-26 14:47:11
AC	heqianyu	9ms	504 KiB	C++14	139 Bytes	2025-7-24 15:46:03
AC	_chjich_	9ms	764 KiB	C++14(O2)	142 Bytes	2024-8-13 12:49:08
AC	昂冠宇xly2025	9ms	504 KiB	C++14(O2)	142 Bytes	2025-7-4 11:00:01
AC	缪欣然xly2025	9ms	504 KiB	C++14(O2)	137 Bytes	2025-7-4 11:06:23
AC	龙肖瑾xly2025	9ms	504 KiB	C++14(O2)	142 Bytes	2025-7-4 19:59:40
AC	zhm516888	9ms	504 KiB	C++17(O2)	173 Bytes	2025-7-7 20:40:07
AC	tianlangyufirst	9ms	504 KiB	C++14(O2)	143 Bytes	2025-7-7 10:46:32
AC	张隽语xly2025	9ms	504 KiB	C++14(O2)	145 Bytes	2025-7-4 9:34:56
AC	Mch121018	9ms	760 KiB	C++14(O2)	175 Bytes	2025-7-25 1:24:44
AC	严晨航	9ms	504 KiB	C++14(O2)	142 Bytes	2025-7-4 9:53:43
AC	杨苏灿	9ms	760 KiB	C++14(O2)	136 Bytes	2025-8-8 19:37:49
AC	duobei	9ms	504 KiB	C++14	147 Bytes	2025-5-30 15:27:14
AC	姚胜蓝	9ms	504 KiB	C++14(O2)	122 Bytes	2025-7-4 9:17:23
AC	taoruiguo120	9ms	504 KiB	C++14	162 Bytes	2025-7-17 19:48:36
AC	江佩珊	9ms	508 KiB	C++14(O2)	142 Bytes	2025-8-7 20:31:46