ATabc285a [ABC285A] Edge Checker 2 入门
ATabc285b [ABC285B] Longest Uncommon Prefix 入门
ATabc285c [ABC285C] abc285_brutmhyhiizp 入门
ATabc285d [ABC285D] Change Usernames 普及/提高−
ATabc285e [ABC285E] Work or Rest 普及+/提高
ATabc285f [ABC285F] Substring of Sorted String 普及+/提高
ATabc285g [ABC285G] Tatami 省选/NOI−
ATabc285h [ABC285Ex] Avoid Square Number NOI/NOI+/CTSC

官网代码：

https://atcoder.jp/contests/abc285/submissions?f.Task=abc285_h&f.LanguageName=C%2B%2B&f.Status=AC&f.User=