【例3.1】输出表达式的值

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	马康智xly2025	1ms	504 KiB	C++14(O2)	112 Bytes	2025-8-7 20:51:51
AC	chenqiugu	1ms	504 KiB	C++14	134 Bytes	2025-7-17 19:02:21
AC	张叶朵	2ms	504 KiB	C++14(O2)	112 Bytes	2025-7-4 9:23:41
AC	李穆萨1.04	2ms	504 KiB	C++14(O2)	112 Bytes	2025-7-9 11:32:37
AC	周天心qcx	2ms	504 KiB	C++14(O2)	116 Bytes	2025-7-7 9:46:35
AC	何庭杨xly2025	2ms	504 KiB	C++14(O2)	114 Bytes	2025-7-4 9:15:51
AC	shtian	2ms	536 KiB	C++98	159 Bytes	2024-7-10 20:37:40
AC	吴院琳	2ms	504 KiB	C++14(O2)	111 Bytes	2025-8-16 20:42:34
AC	韦昱丞	2ms	504 KiB	C++14(O2)	111 Bytes	2025-8-17 9:44:51
AC	江佩珊	2ms	504 KiB	C++14(O2)	112 Bytes	2025-8-7 10:45:00
AC	周宝熠xly2025	2ms	504 KiB	C++14(O2)	122 Bytes	2025-7-4 9:11:13
AC	sage2012	2ms	504 KiB	C++14(O2)	114 Bytes	2025-9-26 22:35:57
AC	康富洁	2ms	504 KiB	C++14(O2)	111 Bytes	2025-8-16 20:33:40
AC	林语涵	2ms	344 KiB	C++14(O2)	111 Bytes	2025-8-7 17:16:31
AC	张霖桐	2ms	504 KiB	C++14(O2)	113 Bytes	2025-7-4 9:32:01
AC	Mr_Wr	2ms	504 KiB	C++14(O2)	112 Bytes	2025-7-4 9:06:46
AC	string_dbr	2ms	504 KiB	C++14(O2)	325 Bytes	2025-5-26 14:31:19
AC	蒋怡睿	2ms	504 KiB	C++14(O2)	109 Bytes	2025-8-16 20:33:34
AC	李轩逸xly2025	2ms	504 KiB	C++14(O2)	112 Bytes	2025-7-4 9:31:32
AC	曾彦彬contest	2ms	504 KiB	C++14(O2)	111 Bytes	2025-7-11 15:17:27
AC	余姿辰	2ms	504 KiB	C++14(O2)	109 Bytes	2025-8-16 20:38:29
AC	董王子	2ms	504 KiB	C++14(O2)	111 Bytes	2025-8-17 8:09:44
AC	_chjich_	2ms	324 KiB	C++14(O2)	112 Bytes	2024-7-23 9:07:45
AC	杨锦莲xly2025	2ms	504 KiB	C++14(O2)	107 Bytes	2025-7-4 10:01:14
AC	姚辰x1y2025	2ms	504 KiB	C++14(O2)	104 Bytes	2025-8-18 11:06:00
AC	xzh13579	2ms	504 KiB	C++14(O2)	119 Bytes	2025-7-4 9:11:55
AC	简怀墨xly2025	2ms	504 KiB	C++14(O2)	134 Bytes	2025-7-4 9:12:02
AC	董涵铮	2ms	492 KiB	C++14(O2)	106 Bytes	2025-7-4 9:32:39
AC	Lyd1107	3ms	504 KiB	C++14	175 Bytes	2025-7-22 17:50:02
AC	卢皓禹xly2025	3ms	504 KiB	C++14(O2)	115 Bytes	2025-7-4 9:25:47
AC	马誉纯	3ms	504 KiB	C++14(O2)	115 Bytes	2025-7-4 20:00:53
AC	奶龙一世	3ms	536 KiB	C++14(O2)	111 Bytes	2025-9-10 16:58:21
AC	女乃龙	3ms	504 KiB	C++14(O2)	112 Bytes	2025-7-11 15:30:43
AC	张隽语xly2025	3ms	504 KiB	C++14(O2)	125 Bytes	2025-7-4 9:07:19
AC	刘诗瑶qcx	3ms	504 KiB	C++14(O2)	114 Bytes	2025-7-7 9:18:13
AC	李昕豫qcx	3ms	504 KiB	C++14(O2)	114 Bytes	2025-7-8 15:53:18
AC	王鸿畅xly2025	3ms	504 KiB	C++14(O2)	114 Bytes	2025-7-4 9:42:33
AC	李承兴	3ms	532 KiB	C++14(O2)	112 Bytes	2025-7-5 9:48:24
AC	杨家齐xly2025	3ms	440 KiB	C++14(O2)	106 Bytes	2025-7-4 9:09:19
AC	张芷若xly2025	3ms	504 KiB	C++14(O2)	133 Bytes	2025-7-4 9:11:41
AC	Harry	3ms	504 KiB	C++14	114 Bytes	2025-7-20 20:29:45
AC	pcx...	3ms	504 KiB	C++14	109 Bytes	2025-7-22 22:16:35
AC	石勇超	3ms	504 KiB	C++14(O2)	115 Bytes	2025-8-17 10:43:08
AC	王梓汀	3ms	504 KiB	C++14(O2)	119 Bytes	2025-7-11 17:29:09
AC	田玺琳	3ms	504 KiB	C++14(O2)	112 Bytes	2025-7-4 9:37:49
AC	钟雨辰xly2025	3ms	504 KiB	C++14(O2)	106 Bytes	2025-7-4 9:15:28
AC	zzy15924600533	3ms	504 KiB	C++14(O2)	113 Bytes	2025-7-20 16:58:23
AC	_anguanie_	3ms	504 KiB	C++14(O2)	106 Bytes	2025-7-4 9:04:35
AC	班振浩	3ms	324 KiB	C++14(O2)	122 Bytes	2025-9-20 9:21:30
AC	昂冠宇xly2025	3ms	504 KiB	C++14(O2)	120 Bytes	2025-7-4 9:43:34
AC	陈珑予xly2025	3ms	508 KiB	C++14(O2)	110 Bytes	2025-7-4 9:06:55
AC	周煜杰	3ms	500 KiB	C++14(O2)	111 Bytes	2025-7-4 18:04:12
AC	Mch121018	3ms	508 KiB	C++14(O2)	109 Bytes	2025-7-5 14:28:44
AC	万千绮qcx	3ms	544 KiB	C++14(O2)	114 Bytes	2025-7-8 16:27:18
AC	陈姝瑜	3ms	504 KiB	C++14(O2)	108 Bytes	2025-8-16 20:30:44
AC	王思懿	3ms	504 KiB	C++14(O2)	112 Bytes	2025-7-4 9:09:49
AC	龙肖瑾xly2025	3ms	504 KiB	C++14(O2)	112 Bytes	2025-7-4 9:33:16
AC	肖钰曦	3ms	504 KiB	C++14(O2)	112 Bytes	2025-8-7 17:07:11
AC	z343151536	3ms	504 KiB	C++14	109 Bytes	2025-8-18 16:39:06
AC	root	3ms	504 KiB	C++14(O2)	115 Bytes	2025-5-3 8:12:12
AC	李俊诚	3ms	504 KiB	C++14(O2)	112 Bytes	2025-7-17 9:56:32
AC	杨晨希xly2025	3ms	504 KiB	C++14(O2)	113 Bytes	2025-7-4 9:06:56
AC	惠文奕xly2025	3ms	504 KiB	C++14(O2)	117 Bytes	2025-7-4 19:48:18
AC	ZYJing2012	3ms	504 KiB	C++14(O2)	116 Bytes	2025-7-4 9:08:55
AC	后程兮qcx	3ms	504 KiB	C++14(O2)	111 Bytes	2025-7-18 11:17:17
AC	严梓瑄	3ms	508 KiB	C++14(O2)	115 Bytes	2025-8-9 19:18:50
AC	gfgg	3ms	504 KiB	C++14(O2)	109 Bytes	2025-5-26 11:08:23
AC	jinxijun	3ms	504 KiB	C++14	110 Bytes	2025-7-22 17:52:03
AC	姚胜蓝	3ms	504 KiB	C++14(O2)	142 Bytes	2025-7-4 9:06:26
AC	周利华	3ms	508 KiB	C++14(O2)	109 Bytes	2025-8-16 20:35:44
AC	周轩平	3ms	536 KiB	C++14(O2)	114 Bytes	2025-9-7 17:21:07
AC	白力予	3ms	504 KiB	C++14(O2)	114 Bytes	2025-7-4 9:57:20
AC	奉胤含	3ms	504 KiB	C++14(O2)	111 Bytes	2025-8-16 20:32:09
AC	茶哈霖	3ms	504 KiB	C++14(O2)	107 Bytes	2025-8-17 8:42:43
AC	宁雨涵	3ms	504 KiB	C++14(O2)	143 Bytes	2025-8-16 20:38:04
AC	丘岳翔	3ms	508 KiB	C++14(O2)	111 Bytes	2025-8-17 8:16:23
AC	李志鹤2025xlycontest	3ms	504 KiB	C++14(O2)	115 Bytes	2025-8-18 10:52:36
AC	maochengjun	3ms	504 KiB	C++14	107 Bytes	2025-7-9 15:12:20
AC	严晨航	3ms	496 KiB	C++14(O2)	115 Bytes	2025-7-4 9:09:55
AC	谭博文	3ms	320 KiB	C++14(O2)	111 Bytes	2025-9-6 9:26:47
AC	yh2025	3ms	504 KiB	C++14(O2)	114 Bytes	2025-7-24 18:36:03
AC	冯俊诚	3ms	508 KiB	C++14(O2)	106 Bytes	2025-8-13 14:07:42
AC	罗子轩	3ms	504 KiB	C++14(O2)	107 Bytes	2025-8-17 8:04:29
AC	罗悦嘉	3ms	504 KiB	C++14(O2)	109 Bytes	2025-8-17 9:31:09
AC	简怀墨2025xlycontest	3ms	324 KiB	C++14(O2)	117 Bytes	2025-9-12 15:09:21
AC	w20120404	3ms	504 KiB	C++14(O2)	128 Bytes	2025-7-17 11:37:52
AC	张鳅月	3ms	504 KiB	C++14(O2)	106 Bytes	2025-8-16 20:37:20
AC	李衍树xly2025	3ms	504 KiB	C++14(O2)	112 Bytes	2025-7-4 9:08:39
AC	曹天齐	3ms	504 KiB	C++14(O2)	95 Bytes	2025-8-17 8:20:18
AC	罗川皓xly2025	3ms	536 KiB	C++14(O2)	112 Bytes	2025-7-4 9:13:04
AC	李雨诺129xly2025	3ms	504 KiB	C++14(O2)	112 Bytes	2025-7-4 9:31:20
AC	mz0873	3ms	504 KiB	C++14(O2)	118 Bytes	2025-7-4 15:13:54
AC	徐尔蔓qcx	3ms	504 KiB	C++14(O2)	112 Bytes	2025-7-7 9:23:43
AC	Zzzzsd	3ms	504 KiB	C++14	116 Bytes	2025-8-5 23:43:49
AC	杨珂曦	3ms	536 KiB	C++14(O2)	118 Bytes	2025-9-17 18:38:06
AC	程俊皓1.04	3ms	324 KiB	C++14(O2)	114 Bytes	2025-9-7 17:23:04
AC	熊钞宇	3ms	504 KiB	C++14(O2)	128 Bytes	2025-8-17 8:02:12
AC	tianlangyufirst	3ms	504 KiB	C++14(O2)	114 Bytes	2025-7-7 8:44:27
AC	李锦华	3ms	492 KiB	C++14(O2)	120 Bytes	2025-7-24 18:45:44
AC	胡知鱼	3ms	548 KiB	C++14(O2)	112 Bytes	2025-9-19 18:22:17