【例4.1】交换两个数的位置

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	BRO	2ms	536 KiB	C++98	162 Bytes	2024-7-8 23:27:26
AC	纪隆宇	2ms	504 KiB	C++14	112 Bytes	2025-6-28 8:31:59
AC	丁资凡qcx	2ms	504 KiB	C++14(O2)	123 Bytes	2025-7-13 20:24:08
AC	zhm516888	2ms	504 KiB	C++17(O2)	105 Bytes	2025-7-3 16:04:40
AC	yzh1217	2ms	768 KiB	C++14(O2)	132 Bytes	2024-8-13 16:22:58
AC	Mch121018	2ms	504 KiB	C++14(O2)	199 Bytes	2025-7-4 19:46:49
AC	黄昭明xly2025	2ms	504 KiB	C++14(O2)	118 Bytes	2025-7-5 20:03:55
AC	_chjich_	2ms	536 KiB	C++14	107 Bytes	2024-7-11 13:04:17
AC	曹磊	2ms	504 KiB	C++14	105 Bytes	2025-5-26 14:37:51
AC	姚胜蓝	3ms	376 KiB	C++14(O2)	117 Bytes	2025-7-4 8:50:52
AC	邵馨羽qcx	3ms	504 KiB	C++14(O2)	163 Bytes	2025-7-22 9:33:55
AC	gfgg	3ms	504 KiB	C++14(O2)	314 Bytes	2025-5-26 11:12:25
AC	shtian	3ms	536 KiB	C++98	148 Bytes	2024-7-10 20:38:08
AC	Oxygen	3ms	504 KiB	C++14	106 Bytes	2025-5-25 17:31:30
AC	杨锦莲xly2025	3ms	504 KiB	C++14(O2)	163 Bytes	2025-7-13 20:23:17
AC	duobei	3ms	504 KiB	C++14	123 Bytes	2025-5-29 23:10:23
AC	string_dbr	3ms	764 KiB	C++14(O2)	121 Bytes	2024-7-11 12:59:32