【例7.1】保留3位小数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	班振浩	9ms	768 KiB	C++14(O2)	153 Bytes	2025-10-9 14:33:44
AC	商竣杰2026dly	9ms	512 KiB	C++14(O2)	139 Bytes	2026-1-22 10:47:55
AC	郑雅婷2026dly	9ms	516 KiB	C++14(O2)	168 Bytes	2026-1-22 20:44:22
AC	林思媛2026dly	9ms	512 KiB	C++14(O2)	133 Bytes	2026-1-25 16:04:12
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	黄也洛	9ms	512 KiB	C++14(O2)	134 Bytes	2026-1-22 21:54:31
AC	杨茗涵2026dly	9ms	512 KiB	C++14(O2)	133 Bytes	2026-1-23 23:16:56
AC	杨博然2026dly	9ms	512 KiB	C++14(O2)	153 Bytes	2026-1-22 20:15:06
AC	陶梓萱2026dly	9ms	512 KiB	C++14(O2)	143 Bytes	2026-1-23 20:02:21
AC	杨博麟2026dly	9ms	512 KiB	C++14(O2)	128 Bytes	2026-1-25 13:58:39
AC	龙肖瑾xly2025	9ms	504 KiB	C++14(O2)	142 Bytes	2025-7-4 19:59:40
AC	刘诗瑶qcx	9ms	512 KiB	C++14(O2)	120 Bytes	2026-2-1 16:46:11
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	宗源卿2026dly	9ms	512 KiB	C++14(O2)	144 Bytes	2026-1-24 0:49:38
AC	王李飞飞2026dly	9ms	512 KiB	C++14(O2)	142 Bytes	2026-1-21 20:23:55
AC	孙培沂2026dly	9ms	512 KiB	C++14(O2)	163 Bytes	2026-1-21 20:20:06
AC	景天澍	9ms	768 KiB	C++14(O2)	116 Bytes	2026-2-28 20:00:58
AC	何志贤2026dly	9ms	560 KiB	C++14(O2)	138 Bytes	2026-1-18 17:21:12
AC	熊辰希2026dly	9ms	512 KiB	C++14(O2)	180 Bytes	2026-1-22 13:32:42
AC	史子友	9ms	504 KiB	C++14(O2)	239 Bytes	2025-10-29 11:13:53
AC	黄盼希2026dly	9ms	512 KiB	C++14(O2)	177 Bytes	2026-1-25 15:20:40
AC	梁照晨2026dly	9ms	512 KiB	C++14(O2)	138 Bytes	2026-1-23 21:24:05
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	李昕豫qcx	9ms	536 KiB	C++14(O2)	164 Bytes	2025-8-26 10:17:16
AC	邓嘉怡2026dly	9ms	768 KiB	C++14(O2)	155 Bytes	2026-1-25 14:53:09
AC	王子铭2026dly	9ms	512 KiB	C++14(O2)	157 Bytes	2026-1-24 17:34:53
AC	杨清冉2026dly	9ms	768 KiB	C++14(O2)	143 Bytes	2026-1-25 22:01:46
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	安致远2026dly	9ms	512 KiB	C++14(O2)	163 Bytes	2026-1-14 13:04:16
AC	郭祖廷2026dly	9ms	512 KiB	C++14(O2)	186 Bytes	2026-1-17 22:44:45
AC	杨洋2026dly	9ms	512 KiB	C++14(O2)	154 Bytes	2026-1-17 19:47:05
AC	吴承丞2026dly	9ms	516 KiB	C++14(O2)	144 Bytes	2026-1-25 20:55:39
AC	李钰浩2026dly	9ms	512 KiB	C++14(O2)	137 Bytes	2026-1-23 10:20:54
AC	蔡依龙2026dly	9ms	556 KiB	C++14(O2)	110 Bytes	2026-1-22 8:23:25
AC	李昕豫2026dly	9ms	512 KiB	C++14(O2)	155 Bytes	2026-1-12 20:17:41
AC	lyd	9ms	504 KiB	C++14(O2)	144 Bytes	2025-9-28 14:26:56
AC	刘诗瑶2026dly	9ms	516 KiB	C++14(O2)	112 Bytes	2026-1-21 22:19:33
AC	白力予1	9ms	504 KiB	C++14(O2)	146 Bytes	2025-10-21 11:28:45
AC	胡致远2026dly	9ms	512 KiB	C++14(O2)	145 Bytes	2026-1-19 18:20:08
AC	方晨州2026dly	9ms	516 KiB	C++14(O2)	146 Bytes	2026-1-11 19:43:38
AC	趙婉婷2026dly	9ms	512 KiB	C++14(O2)	161 Bytes	2026-1-18 13:02:33
AC	taoruiguo120	9ms	504 KiB	C++14	162 Bytes	2025-7-17 19:48:36
AC	黄健峰2026dly	9ms	516 KiB	C++14(O2)	125 Bytes	2026-1-21 20:02:19
AC	张宸语2026dly	9ms	512 KiB	C++14(O2)	97 Bytes	2026-1-23 9:40:48
AC	江佩珊	9ms	508 KiB	C++14(O2)	142 Bytes	2025-8-7 20:31:46
AC	赵梓辰2026dly	9ms	516 KiB	C++14(O2)	133 Bytes	2026-1-25 18:45:08
AC	苏浩宇2026dly	10ms	512 KiB	C++14(O2)	145 Bytes	2026-1-25 22:46:58