? and Counting Problem

状态	递交者	时间	内存	语言	代码	递交时间
AC	gengtianhao	40ms	816 KiB	C++11(O2)	347 Bytes	2025-9-8 19:09:53
AC	7stu001	40ms	2.6 MiB	C++11(O2)	214 Bytes	2025-9-8 18:57:17
AC	7stu0027	40ms	808 KiB	C++11(O2)	540 Bytes	2025-9-8 19:17:12
AC	6sxyz35	1820ms	812 KiB	C++17(O2)	272 Bytes	2025-9-8 16:55:24
AC	7stu0024	1903ms	852 KiB	C++11(O2)	3 KiB	2025-9-8 17:03:36
AC	6sxyz86	1947ms	808 KiB	C++11(O2)	3.6 KiB	2025-9-8 19:34:02
AC	6sxyz68	1983ms	808 KiB	C++11(O2)	2.3 KiB	2025-9-8 18:07:43
AC	7stu003	2270ms	692 KiB	C++11(O2)	376 Bytes	2025-9-8 16:57:27
AC	7stu006	2270ms	808 KiB	C++11(O2)	280 Bytes	2025-9-8 20:39:25
AC	6sxyz9	2304ms	812 KiB	C++17(O2)	359 Bytes	2025-9-8 16:53:43
AC	6sxyz16	2552ms	816 KiB	C++11(O2)	334 Bytes	2025-9-8 17:31:41
AC	C0ns1st	4030ms	808 KiB	C++11(O2)	449 Bytes	2025-9-8 17:06:04
AC	yyy_loves_OI	6404ms	808 KiB	C++14(O2, GCC 9.3.0)	704 Bytes	2025-9-8 18:06:10