稳定排序下标（有重复关键字）

状态	递交者	时间	内存	语言	代码	递交时间
AC	UID 1077	31ms	384 KiB	C++14[O2]	335 Bytes	2024-7-4 10:31:26
AC	33DAI	32ms	416 KiB	C++14[O2]	450 Bytes	2026-7-11 16:45:50
AC	Duyuzheng0815	32ms	512 KiB	C++14[O2]	486 Bytes	2024-7-31 17:18:28
AC	UID 1076	32ms	396 KiB	C++14[O2]	391 Bytes	2024-7-4 9:20:20
AC	zongjiayi	35ms	424 KiB	C++14[O2]	335 Bytes	2026-7-11 16:52:27
AC	lyh	35ms	412 KiB	C++14[O2]	437 Bytes	2026-7-11 16:49:00
AC	许雍然	36ms	424 KiB	C++14[O2]	367 Bytes	2026-9-26 19:41:58
AC	张阡陌	39ms	424 KiB	C++14[O2]	489 Bytes	2026-9-27 14:26:14
AC	杨之瑭	52ms	516 KiB	C++14[O2]	437 Bytes	2026-9-18 15:38:05
AC	UID 547	79ms	15.8 MiB	C++14[O2]	396 Bytes	2023-7-1 22:39:46
AC	UID 545	1972ms	404 KiB	C++14[O2]	417 Bytes	2023-7-11 17:12:24