[NOIP 2016 提高组] 组合数问题

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	BC20280415	478ms	29.4 MiB	C++14(O2)	578 Bytes	2025-9-27 12:07:12
AC	BC20280302	540ms	31.3 MiB	C++14(O2)	572 Bytes	2025-9-27 12:02:48
AC	BC20280086	919ms	61.9 MiB	C++14(O2)	532 Bytes	2025-9-27 12:13:22
AC	BC20280005	952ms	31.1 MiB	C++11	611 Bytes	2025-9-27 12:15:06
AC	C20250056	1014ms	53.9 MiB	C++17	735 Bytes	2024-3-15 22:57:05
AC	BC20260080	1025ms	57.4 MiB	C++17	1.1 KiB	2024-4-13 13:21:44
AC	BC20280018	1341ms	53.9 MiB	C++14(O2)	812 Bytes	2025-9-28 22:26:42
AC	linzhixing2024	2222ms	61.8 MiB	C++14(O2)	2 KiB	2025-9-27 11:59:41