【例7.1】保留3位小数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	sandycheng	20ms	512 KiB	C++20(O2)	154 Bytes	2025-6-7 13:49:48
AC	allenyang	22ms	548 KiB	C++20(O2)	126 Bytes	2025-6-7 13:35:20
AC	seanpan	22ms	552 KiB	C++98	137 Bytes	2025-9-21 12:07:22
AC	dennisxu	22ms	556 KiB	C++20	121 Bytes	2025-10-18 10:43:43
AC	simonzhang	22ms	552 KiB	C++98	143 Bytes	2025-10-19 16:34:37
AC	lucaswu	22ms	576 KiB	C++98	131 Bytes	2025-9-20 8:37:13
AC	liangu	22ms	552 KiB	C++20(O2)	137 Bytes	2025-6-7 13:47:50
AC	markszeng	22ms	552 KiB	C++98	107 Bytes	2025-6-14 9:11:57
AC	chengweisun	22ms	532 KiB	C++20(O2)	134 Bytes	2025-5-30 18:47:05
AC	hankli	23ms	548 KiB	C++20	401 Bytes	2025-6-14 9:50:57
AC	raycao	23ms	552 KiB	C++20(O2)	135 Bytes	2025-6-7 13:35:15
AC	johnnyzhao	23ms	592 KiB	C++98	144 Bytes	2025-9-21 17:25:21
AC	adamtan	23ms	552 KiB	C++20(O2)	134 Bytes	2025-6-14 8:24:47
AC	tigerxu	23ms	544 KiB	C++20(O2)	136 Bytes	2025-6-7 13:55:00
AC	alicexie	23ms	548 KiB	C++98	158 Bytes	2025-10-19 16:38:49
AC	estellawang	23ms	548 KiB	C++98	138 Bytes	2025-9-21 17:32:10
AC	xianyinli	23ms	548 KiB	C++20(O2)	133 Bytes	2025-10-18 10:58:26
AC	bowenzhang	23ms	668 KiB	C++20(O2)	125 Bytes	2025-10-19 16:22:13
AC	georgehuang	24ms	544 KiB	C++98	136 Bytes	2025-6-7 14:09:39
AC	skyejiang	24ms	556 KiB	C++98	131 Bytes	2025-11-29 11:41:44
AC	leomo	24ms	544 KiB	C++20(O2)	121 Bytes	2025-9-13 11:23:37
AC	kylezhong	24ms	552 KiB	C++98	154 Bytes	2025-9-21 17:41:05
AC	stevexiong	25ms	512 KiB	C++98	140 Bytes	2025-9-26 9:15:16
AC	rayzhang	25ms	508 KiB	C++20(O2)	140 Bytes	2025-10-18 8:46:59
AC	peterwei	25ms	544 KiB	C++20(O2)	164 Bytes	2025-11-28 2:09:33
AC	carlosdeng	25ms	552 KiB	C++20(O2)	91 Bytes	2025-10-18 11:01:23
AC	timmyxiao	25ms	520 KiB	C++20(O2)	143 Bytes	2025-10-18 8:44:15
AC	simonwu	25ms	576 KiB	C++20(O2)	134 Bytes	2025-12-5 16:17:10
AC	reginazhang	25ms	552 KiB	C++20(O2)	131 Bytes	2025-10-18 8:31:52
AC	simberwang	26ms	520 KiB	C++20(O2)	123 Bytes	2025-10-18 8:43:01
AC	evanjelinewang	26ms	544 KiB	C++98	156 Bytes	2025-10-18 8:44:29
AC	vionazhang	26ms	520 KiB	C++98	141 Bytes	2025-10-18 8:47:38
AC	carlosduan	27ms	544 KiB	C++20	124 Bytes	2025-10-18 8:42:04
AC	freyazhou	27ms	552 KiB	C++98	133 Bytes	2025-10-18 8:36:03
AC	frankzhao	27ms	544 KiB	C++20(O2)	136 Bytes	2025-10-18 8:48:03
AC	jerryhu	28ms	536 KiB	C++98	157 Bytes	2025-10-18 8:46:14
AC	coopermao	28ms	548 KiB	C++98	145 Bytes	2025-9-20 9:02:51
AC	dangzhouyang	29ms	512 KiB	C++98(O2)	154 Bytes	2025-10-18 8:49:20
AC	ciciren	29ms	556 KiB	C++98	155 Bytes	2025-10-18 9:05:39
AC	henryliu	30ms	524 KiB	C++20(O2)	137 Bytes	2025-10-18 8:43:47
AC	haijingwen	31ms	1.7 MiB	C++20(O2)	123 Bytes	2025-10-18 8:17:28