两个相同字符之间的最长字符串

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	浪漫的奶茶7579	24ms	7.8 MiB	C++14(O2)	566 Bytes	2026-10-9 23:17:35
AC	97NQ4mh6Xs	24ms	7.5 MiB	C++14(O2)	443 Bytes	2026-10-3 16:36:22
AC	从容的船长5548	25ms	7.4 MiB	C++	415 Bytes	2026-10-9 10:37:40
AC	k3RciE7FYi	26ms	7.7 MiB	C++14(O2)	881 Bytes	2026-10-8 20:34:04
AC	认真的诗人	30ms	7.1 MiB	C++17(O2)	375 Bytes	2026-9-22 10:27:32
AC	y4xKJP1MEQ	238ms	11.2 MiB	Python 3	699 Bytes	2026-10-1 18:24:50
AC	机灵的沙丘4685	238ms	11.2 MiB	Python 3	576 Bytes	2026-10-3 21:54:02
AC	爱笑的小鹿9928	239ms	11.2 MiB	Python 3	231 Bytes	2026-10-2 13:02:50
AC	naCsBUWNEA	239ms	11.2 MiB	Python 3	413 Bytes	2026-10-3 15:10:53
AC	冷静的诗人4475	242ms	11.2 MiB	Python 3	645 Bytes	2026-10-6 20:34:59
AC	LHES3TkcKG	243ms	11.2 MiB	Python 3	389 Bytes	2026-10-10 10:21:13
AC	JK乐园	243ms	11.3 MiB	Python 3	428 Bytes	2026-9-30 17:35:47
AC	G8OcFzZbRR	243ms	11.2 MiB	Python 3	418 Bytes	2026-10-10 11:09:38
AC	刹影-轩	244ms	11.2 MiB	Python 3	292 Bytes	2026-10-6 21:04:11
AC	W5bgSW7euO	244ms	11.2 MiB	Python 3	369 Bytes	2026-10-1 13:41:36
AC	1DZrL6X0EJ	245ms	11.2 MiB	Python 3	340 Bytes	2026-10-3 21:53:26
AC	Ad1JqgRSQS	245ms	11.2 MiB	Python 3	399 Bytes	2026-10-6 15:52:34
AC	WmNoZzHpTe	247ms	11.2 MiB	Python 3	576 Bytes	2026-10-9 16:21:40
AC	G1Rt4mC5uf	248ms	11.2 MiB	Python 3	577 Bytes	2026-10-8 18:59:24
AC	MER1mCcfG0	249ms	11.2 MiB	Python 3	403 Bytes	2026-10-7 18:02:18
AC	Lfz2Ok3YfF	249ms	11.2 MiB	Python 3	166 Bytes	2026-10-2 15:34:58
AC	Pvaw2RRpEo	251ms	11.2 MiB	Python 3	490 Bytes	2026-10-9 16:42:56
AC	活泼的浪花	253ms	11.2 MiB	Python 3	161 Bytes	2026-10-5 14:48:55
AC	ArP1napi2F	253ms	11.2 MiB	Python 3	211 Bytes	2026-9-25 21:40:56
AC	好奇的月亮4941	254ms	11.2 MiB	Python 3	228 Bytes	2026-9-27 16:44:32
AC	ve1cTD5GeY	254ms	11.2 MiB	Python 3	344 Bytes	2026-10-10 9:39:56
AC	CodeFunc37a0dbd22	257ms	11.2 MiB	Python 3	380 Bytes	2026-10-5 20:39:08
AC	沉稳的少年	259ms	11.2 MiB	Python 3	584 Bytes	2026-9-30 0:01:57
AC	0YzQWuLGC3	261ms	11.2 MiB	Python 3	470 Bytes	2026-10-8 12:25:57
AC	勤劳的白鹭5468	262ms	11.2 MiB	Python 3	297 Bytes	2026-10-9 22:59:56
AC	sSiralL6YF	266ms	11.2 MiB	Python 3	401 Bytes	2026-10-8 2:54:14
AC	6n6gdiSoYb	269ms	11.2 MiB	Python 3	488 Bytes	2026-10-1 16:40:59
AC	XIAO渝	281ms	11.2 MiB	Python 3	262 Bytes	2026-10-4 11:49:38
AC	奔跑的熊猫	281ms	11.2 MiB	Python 3	306 Bytes	2026-10-6 0:03:43
AC	luti	624ms	41.5 MiB	Java	1.1 KiB	2026-9-15 10:43:53
AC	Ilsg3nZA3u	652ms	41.4 MiB	Java	724 Bytes	2026-10-7 12:30:25
AC	敏锐的船长3674	1292ms	45.2 MiB	Java	642 Bytes	2026-10-4 12:05:01
AC	Tf2GOenUH7	1316ms	45 MiB	Java	555 Bytes	2026-10-6 10:09:31
AC	bQLj6qcUSg	1336ms	45.3 MiB	Java	755 Bytes	2026-9-28 23:49:54
AC	踏实的熊猫9599	1431ms	45.2 MiB	Java	540 Bytes	2026-10-8 10:49:01
AC	KQThLUYlNM	1440ms	46.1 MiB	Java	596 Bytes	2026-10-11 18:33:56