@LCuter https://www.luogu.org/blog/83547/zong-dong-tai-gui-hua-di-ben-zhi-kan-si-bian-xing-fou-deng-shi-you-hua

感谢投稿，已加入候选队列

看起来$a\leq b\leq c$应该改成$a<b<c$