[洛谷 3434][POI2006]KRA-The Disks 题目链接 https://www.luogu.com.cn/problem/P3434 继续阅读[洛谷 3434][POI2006]KRA-The Disks
[洛谷 3661][USACO17FEB]Why Did the Cow Cross the Road I S 题目链接 https://www.luogu.org/problem/P3661 继续阅读[洛谷 3661][USACO17FEB]Why Did the Cow Cross the Road I S