【例70.2】求A-B字符串

状态	递交者	时间	内存	语言	代码	递交时间
AC	15861021069	29ms	512 KiB	C++17(O2)	348 Bytes	2026-1-11 14:52:08
AC	13901420420	30ms	1016 KiB	C++17(O2)	400 Bytes	2026-1-10 11:05:18
AC	18796792921	30ms	512 KiB	C++17(O2)	348 Bytes	2026-1-11 14:57:28
AC	15252666790	30ms	768 KiB	C++17(O2)	358 Bytes	2026-3-21 11:38:42
AC	caochungui	31ms	564 KiB	C++17(O2)	373 Bytes	2026-3-21 11:35:47
AC	15996006306	31ms	760 KiB	C++17(O2)	409 Bytes	2026-1-10 10:55:14
AC	18082060086	31ms	580 KiB	C++17(O2)	337 Bytes	2026-3-21 11:38:52
AC	13951145877	31ms	768 KiB	C++17(O2)	355 Bytes	2026-3-21 11:37:18
AC	15896581923	31ms	760 KiB	C++17(O2)	352 Bytes	2026-1-10 11:06:43
AC	15896015968	32ms	512 KiB	C++17(O2)	354 Bytes	2026-3-21 17:06:04
AC	15052321516	32ms	568 KiB	C++17(O2)	350 Bytes	2026-1-11 14:51:56
AC	13914529859	32ms	768 KiB	C++17(O2)	383 Bytes	2026-3-21 20:03:10
AC	13641567801	33ms	556 KiB	C++17(O2)	344 Bytes	2026-3-21 11:41:01
AC	15952606862	33ms	504 KiB	C++17(O2)	348 Bytes	2026-1-10 11:06:11
AC	15052385956	33ms	512 KiB	C++17(O2)	357 Bytes	2026-3-21 11:42:14
AC	15905263344	33ms	512 KiB	C++17(O2)	382 Bytes	2026-3-21 11:39:20
AC	17712578847	34ms	516 KiB	C++17(O2)	340 Bytes	2026-3-21 17:08:53