【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	罗浩凌2026dly	2ms	508 KiB	C++14(O2)	102 Bytes	2026-1-10 11:04:00
AC	韩森同2026dly	2ms	496 KiB	C++14(O2)	101 Bytes	2025-12-29 12:45:18
AC	李穆萨1.04	2ms	504 KiB	C++14(O2)	112 Bytes	2025-7-9 11:32:37
AC	田馨月2026dly	2ms	504 KiB	C++14(O2)	114 Bytes	2026-1-1 17:09:27
AC	王启泽2026dly	2ms	504 KiB	C++14(O2)	106 Bytes	2025-12-28 21:46:24
AC	黄厚铭2026dly	2ms	504 KiB	C++14(O2)	116 Bytes	2025-12-31 21:20:24
AC	李芮燃2026dly	2ms	504 KiB	C++14(O2)	114 Bytes	2025-12-31 21:33:50
AC	周天心qcx	2ms	504 KiB	C++14(O2)	116 Bytes	2025-7-7 9:46:35
AC	高尚美2026dly	2ms	504 KiB	C++14(O2)	117 Bytes	2025-12-29 18:15:17
AC	沈天宇2026dly	2ms	504 KiB	C++14(O2)	112 Bytes	2026-1-3 15:01:36
AC	杨博麟2026dly	2ms	504 KiB	C++14(O2)	111 Bytes	2026-1-3 15:03:18
AC	李向阳2026dly	2ms	504 KiB	C++14(O2)	114 Bytes	2025-12-30 21:59:21
AC	唐源懋2026dly	2ms	504 KiB	C++14(O2)	114 Bytes	2026-1-1 16:53:16
AC	shtian	2ms	536 KiB	C++98	159 Bytes	2024-7-10 20:37:40
AC	李昕司晨2026dly	2ms	508 KiB	C++14(O2)	114 Bytes	2025-12-29 22:27:27
AC	韦昱丞	2ms	504 KiB	C++14(O2)	111 Bytes	2025-8-17 9:44:51
AC	吴院琳	2ms	504 KiB	C++14(O2)	111 Bytes	2025-8-16 20:42:34
AC	孔令宇2026dly	2ms	508 KiB	C++14(O2)	107 Bytes	2025-12-28 20:46:21
AC	宋楷涵2026dly	2ms	504 KiB	C++14(O2)	112 Bytes	2026-1-1 10:37:45
AC	邵馨羽2026dly	2ms	512 KiB	C++14(O2)	106 Bytes	2026-1-23 9:45:24
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	宋昊骋2026dly	2ms	504 KiB	C++14(O2)	114 Bytes	2026-1-1 15:21:13
AC	马岩2026dly	2ms	504 KiB	C++14(O2)	109 Bytes	2025-12-28 20:16:12
AC	米秋宇2026dly	2ms	504 KiB	C++14(O2)	107 Bytes	2025-12-29 20:29:08
AC	康富洁	2ms	504 KiB	C++14(O2)	111 Bytes	2025-8-16 20:33:40
AC	何志贤2026dly	2ms	504 KiB	C++14(O2)	108 Bytes	2025-12-28 20:45:41
AC	林语涵	2ms	344 KiB	C++14(O2)	111 Bytes	2025-8-7 17:16:31
AC	沈若凡2026dly	2ms	504 KiB	C++14(O2)	160 Bytes	2025-12-30 21:15:33
AC	蔡依龙2026dly	2ms	504 KiB	C++14(O2)	99 Bytes	2025-12-28 20:46:32
AC	张霖桐	2ms	504 KiB	C++14(O2)	113 Bytes	2025-7-4 9:32:01
AC	桂佳妙2026dly	2ms	504 KiB	C++14(O2)	112 Bytes	2026-1-1 8:56:11
AC	卿哲铭2026dly	2ms	492 KiB	C++14(O2)	106 Bytes	2026-1-3 21:46:33
AC	杨泫钦2026dly	2ms	508 KiB	C++14(O2)	111 Bytes	2026-1-1 21:13:57
AC	罗子嫣2026dly	2ms	508 KiB	C++14(O2)	115 Bytes	2025-12-30 21:07:13
AC	汤骐嘉2026dly	2ms	504 KiB	C++14(O2)	114 Bytes	2025-12-28 16:46:45
AC	Mr_Wr	2ms	504 KiB	C++14(O2)	112 Bytes	2025-7-4 9:06:46
AC	林思媛2026dly	2ms	340 KiB	C++14(O2)	121 Bytes	2026-1-6 22:54:46
AC	付悠悠2026dly	2ms	504 KiB	C++14(O2)	105 Bytes	2025-12-31 22:01:45
AC	郭震宇2026dly	2ms	604 KiB	C++14(O2)	106 Bytes	2025-12-31 20:24:52
AC	郭祥瑞2026dly	2ms	504 KiB	C++14(O2)	122 Bytes	2026-1-3 15:53:43
AC	string_dbr	2ms	504 KiB	C++14(O2)	325 Bytes	2025-5-26 14:31:19
AC	赵靓2026dly	2ms	508 KiB	C++14(O2)	178 Bytes	2025-12-31 17:15:45
AC	蒋怡睿	2ms	504 KiB	C++14(O2)	109 Bytes	2025-8-16 20:33:34
AC	王浩源2026dly	2ms	508 KiB	C++14(O2)	108 Bytes	2025-12-31 19:59:01
AC	王凯浠2026dly	2ms	504 KiB	C++14(O2)	106 Bytes	2025-12-30 21:23:07
AC	郭恒宇2026dly	2ms	504 KiB	C++14(O2)	114 Bytes	2026-1-1 19:22:56
AC	欧阳宇宸2026dly	2ms	496 KiB	C++14(O2)	102 Bytes	2025-12-28 20:40:51
AC	赵娅希2026dly	2ms	504 KiB	C++14(O2)	107 Bytes	2025-12-30 19:45:18
AC	王婉舒2026dly	2ms	504 KiB	C++14(O2)	115 Bytes	2025-12-31 21:37:51
AC	杨高2026dly	2ms	504 KiB	C++14(O2)	113 Bytes	2025-12-30 18:56:34
AC	江羽晨	2ms	512 KiB	C++14(O2)	102 Bytes	2026-2-26 16:22:33
AC	吴雨曦2026dly	2ms	504 KiB	C++14(O2)	116 Bytes	2026-1-1 19:07:06
AC	xzh13579	2ms	512 KiB	C++14(O2)	112 Bytes	2026-1-23 18:28:51
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	肖阳2026dly	2ms	504 KiB	C++14(O2)	106 Bytes	2025-12-30 21:11:22
AC	戴俊懿2026dly	2ms	504 KiB	C++14(O2)	111 Bytes	2025-12-28 20:33:31
AC	米若瑜2026dly	2ms	504 KiB	C++14(O2)	106 Bytes	2025-12-30 22:19:00
AC	余姿辰	2ms	504 KiB	C++14(O2)	109 Bytes	2025-8-16 20:38:29
AC	hmtzl666	2ms	508 KiB	C++14(O2)	135 Bytes	2026-1-3 14:17:02
AC	陈星彤2026dly	2ms	504 KiB	C++14(O2)	158 Bytes	2025-12-29 20:34:58
AC	简怀墨2025xlycontest	2ms	512 KiB	C++14(O2)	105 Bytes	2026-1-15 14:13:14
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	李芯燃2026dly	2ms	504 KiB	C++14(O2)	114 Bytes	2025-12-31 23:23:58
AC	黄也洛	2ms	504 KiB	C++14(O2)	105 Bytes	2025-12-28 14:53:51
AC	杨锦莲xly2025	2ms	504 KiB	C++14(O2)	107 Bytes	2025-7-4 10:01:14
AC	施振瑜2026dly	2ms	500 KiB	C++14(O2)	102 Bytes	2026-1-2 15:33:16
AC	孟致远2026dly	2ms	504 KiB	C++14(O2)	112 Bytes	2025-12-29 20:31:27
AC	牛犇2026dly	2ms	504 KiB	C++14(O2)	108 Bytes	2025-12-28 20:42:24
AC	熊辰希2026dly	2ms	504 KiB	C++14(O2)	119 Bytes	2025-12-31 22:02:55
AC	简怀墨xly2025	2ms	504 KiB	C++14(O2)	134 Bytes	2025-7-4 9:12:02
AC	李奕麒2026dly	2ms	512 KiB	C++14(O2)	111 Bytes	2026-1-21 20:21:08
AC	罗安彤2026dly	2ms	508 KiB	C++14(O2)	115 Bytes	2025-12-30 19:37:24
AC	朱璟堂2026dly	2ms	504 KiB	C++14(O2)	172 Bytes	2025-12-28 22:28:57
AC	杨安祺2026dly	2ms	504 KiB	C++14(O2)	114 Bytes	2025-12-30 22:54:20
AC	董涵铮	2ms	492 KiB	C++14(O2)	106 Bytes	2025-7-4 9:32:39
AC	王梓龙2026dly	2ms	408 KiB	C++14(O2)	108 Bytes	2025-12-28 19:54:51
AC	陶梓萱2026dly	3ms	504 KiB	C++14(O2)	106 Bytes	2026-1-1 23:27:16
AC	刘胤羽2026dly	3ms	504 KiB	C++14(O2)	119 Bytes	2025-12-28 21:56:15
AC	Lyd1107	3ms	504 KiB	C++14	175 Bytes	2025-7-22 17:50:02
AC	蔡涵如2026dly	3ms	444 KiB	C++14(O2)	114 Bytes	2025-12-29 21:33:24
AC	唐文博2026dly	3ms	504 KiB	C++14(O2)	114 Bytes	2025-12-31 19:06:20
AC	卢皓禹xly2025	3ms	504 KiB	C++14(O2)	115 Bytes	2025-7-4 9:25:47
AC	张清果2026dly	3ms	496 KiB	C++14(O2)	106 Bytes	2025-12-30 20:04:13
AC	张志杰2026dly	3ms	504 KiB	C++14(O2)	108 Bytes	2025-12-28 14:57:30
AC	彭子尧2026dly	3ms	508 KiB	C++14(O2)	108 Bytes	2025-12-28 21:46:33
AC	丁资凡2026dly	3ms	504 KiB	C++14(O2)	105 Bytes	2025-12-28 20:27:37
AC	赵梓辰2026dly	3ms	504 KiB	C++14(O2)	112 Bytes	2025-12-31 23:09:58
AC	马誉纯	3ms	504 KiB	C++14(O2)	115 Bytes	2025-7-4 20:00:53
AC	刘锦洁2026dly	3ms	504 KiB	C++14(O2)	108 Bytes	2025-12-30 13:32:17
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	胡致远2026dly	3ms	504 KiB	C++14(O2)	106 Bytes	2025-12-29 22:41:15
AC	张隽语xly2025	3ms	504 KiB	C++14(O2)	125 Bytes	2025-7-4 9:07:19