Problem Statistics - 习题11.4.2 滑冰 - code-fans

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	Renboda2031	187ms	7.1 MiB	C++14(O2)	1.9 KiB	2026-7-27 11:52:24
AC	刘贤林	434ms	6.1 MiB	C++14	2.6 KiB	2026-8-30 6:49:15
AC	yxq	646ms	7 MiB	C++14	2.4 KiB	2026-1-6 13:44:22
AC	Cindy	1002ms	8.3 MiB	C++14	4 KiB	2026-7-29 9:56:30

ID: 502
Time: 1000ms
Memory: 256MiB
Difficulty: 9
Tags: (None)
# Submissions: 9
Accepted: 4
Uploaded By: Hydro