【例3.1】输出表达式的值

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	sandycheng	2ms	336 KiB	C++20(O2)	115 Bytes	2025-6-7 13:12:41
AC	markszeng	2ms	324 KiB	C++11(O2)	89 Bytes	2025-6-12 13:34:57
AC	dangzhouyang	2ms	504 KiB	C++98(O2)	103 Bytes	2025-9-13 9:33:54
AC	ericyu	2ms	372 KiB	C++20	80 Bytes	2025-11-1 11:55:22
AC	samuelgao	2ms	340 KiB	C++20	104 Bytes	2025-9-13 10:43:35
AC	charlieye	2ms	532 KiB	C++98	104 Bytes	2025-6-7 11:04:23
AC	georgehuang	2ms	512 KiB	C++98	104 Bytes	2025-6-7 13:09:15
AC	ddma	2ms	516 KiB	C++20(O2)	101 Bytes	2025-6-7 11:08:30
AC	xianyinli	2ms	520 KiB	C++20(O2)	103 Bytes	2025-6-7 10:54:25
AC	liangu	2ms	488 KiB	C++20(O2)	100 Bytes	2025-6-7 13:16:38
AC	raycao	2ms	512 KiB	C++20(O2)	103 Bytes	2025-6-7 13:08:40
AC	frankzhao	2ms	340 KiB	C++20(O2)	97 Bytes	2025-9-13 9:34:12
AC	allenyang	2ms	324 KiB	C++20(O2)	99 Bytes	2025-6-7 13:11:43
AC	evanzhang	2ms	492 KiB	C++20(O2)	103 Bytes	2025-6-7 10:53:41
AC	leomo	2ms	484 KiB	C++20(O2)	97 Bytes	2025-6-7 11:09:41
AC	tigerxu	2ms	328 KiB	C++20(O2)	104 Bytes	2025-6-7 13:21:52
AC	nathanchen	2ms	372 KiB	C++98	100 Bytes	2025-6-7 8:24:13
AC	chengweisun	2ms	352 KiB	C++20(O2)	103 Bytes	2025-5-30 12:14:49
AC	clarkzhou	2ms	368 KiB	C++20(O2)	88 Bytes	2025-6-14 9:49:16
AC	johnli	2ms	412 KiB	C++20(O2)	93 Bytes	2025-6-7 9:31:42
AC	stevexiong	2ms	480 KiB	C++98	128 Bytes	2025-9-26 8:13:28
AC	jackfan	2ms	512 KiB	C++98	81 Bytes	2025-9-14 17:43:29
AC	simonzhang	2ms	508 KiB	C++98	103 Bytes	2025-9-14 17:20:03
AC	adamtan	2ms	336 KiB	C++98	98 Bytes	2025-6-7 9:27:14
AC	kylezhong	2ms	516 KiB	C++98	99 Bytes	2025-9-14 17:14:46
AC	bowenzhang	2ms	520 KiB	C++20(O2)	102 Bytes	2025-9-13 9:35:18
AC	hankli	2ms	492 KiB	C++11(O2)	84 Bytes	2025-6-7 9:33:37
AC	ciciren	2ms	484 KiB	C++98	114 Bytes	2025-9-13 9:33:35
AC	johnnyzhao	2ms	492 KiB	C++98	101 Bytes	2025-9-14 17:21:37
AC	coopermao	2ms	520 KiB	C++98	121 Bytes	2025-9-13 9:18:39
AC	moonfu	2ms	492 KiB	C++20(O2)	104 Bytes	2025-6-14 9:48:27
AC	estellawang	2ms	524 KiB	C++98	101 Bytes	2025-9-14 17:20:15
AC	carlosduan	2ms	488 KiB	C++20	97 Bytes	2025-9-13 9:34:42
AC	dennisxu	2ms	488 KiB	C++98	84 Bytes	2025-9-13 10:34:54
AC	pipitali	2ms	516 KiB	C++20(O2)	91 Bytes	2025-6-7 9:36:28
AC	lucaswu	2ms	484 KiB	C++98	105 Bytes	2025-9-13 9:38:44
AC	simonwu	2ms	500 KiB	C++20(O2)	103 Bytes	2025-9-13 10:47:33
AC	evanjelinewang	2ms	528 KiB	C++98	99 Bytes	2025-9-14 17:25:38
AC	seanpan	2ms	500 KiB	C++98	103 Bytes	2025-9-13 11:18:41
AC	simberwang	2ms	488 KiB	C++20(O2)	102 Bytes	2025-9-13 9:33:58
AC	freyazhou	2ms	540 KiB	C++98	107 Bytes	2025-9-13 9:58:00
AC	jerrylei	3ms	484 KiB	C++98	99 Bytes	2025-12-10 23:19:35
AC	jerryhu	3ms	324 KiB	C++98	113 Bytes	2025-9-13 9:34:07
AC	carlosdeng	3ms	484 KiB	C++20(O2)	98 Bytes	2025-9-13 10:40:54
AC	rayzhang	3ms	492 KiB	C++20(O2)	97 Bytes	2025-9-13 9:54:48
AC	tobytao	3ms	512 KiB	C++20(O2)	106 Bytes	2025-9-13 9:17:12
AC	vionazhang	3ms	520 KiB	C++98	114 Bytes	2025-9-13 9:35:12
AC	timmyxiao	3ms	480 KiB	C++20(O2)	99 Bytes	2025-9-13 9:41:09
AC	henryliu	3ms	508 KiB	C++20(O2)	102 Bytes	2025-9-13 9:17:01
AC	reginazhang	3ms	540 KiB	C++20(O2)	103 Bytes	2025-9-13 9:37:16
AC	alicexie	3ms	440 KiB	C++98	99 Bytes	2025-9-14 17:21:34
AC	haijingwen	3ms	572 KiB	C++20(O2)	103 Bytes	2025-9-13 9:15:06
AC	williamyu	3ms	548 KiB	C++98	179 Bytes	2025-9-13 11:18:56
AC	peterwei	19ms	3.9 MiB	Python 3	26 Bytes	2025-6-7 8:11:39
AC	charliechen	19ms	4 MiB	Python 3	26 Bytes	2025-6-3 17:37:54
AC	tymonli	21ms	4 MiB	Python 3	26 Bytes	2025-9-13 10:30:10