第2题-护栏补强

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	lUJ3PXKXjd	109ms	6 MiB	C++14(O2)	1.1 KiB	2026-8-24 17:24:51
AC	67XmgX53xo	193ms	5.8 MiB	C++	902 Bytes	2026-8-24 8:56:19
AC	tTYXdQhgso	214ms	6.1 MiB	C++17(O2)	1.1 KiB	2026-8-24 20:24:14
AC	9OXaomIpIL	1182ms	21.6 MiB	Python 3	967 Bytes	2026-8-24 11:40:55
AC	nzbld1y97s	1309ms	22 MiB	Python 3	763 Bytes	2026-8-24 15:49:06
AC	爱笑的云朵	1490ms	21.9 MiB	Python 3	963 Bytes	2026-8-24 21:28:22
AC	luti	1564ms	83.3 MiB	Java	1.4 KiB	2026-8-23 19:50:11
AC	vwrG3xD7Ke	1620ms	21.7 MiB	Python 3	793 Bytes	2026-8-24 0:21:21
AC	owYCjHHEp8	1930ms	21.8 MiB	Python 3	1012 Bytes	2026-8-23 22:20:19
AC	NUU0wR9H8q	2619ms	38.1 MiB	Python 3	782 Bytes	2026-8-24 14:32:17