摘要:
![Description][1] [1]: http://192.168.102.138/JudgeOnline/upload/attachment/image/20160302/20160302145235_24518.jpg Solution 正解是一个$\log$的link cut tree 阅读全文
摘要:
![Description][1] [1]: http://192.168.102.138/JudgeOnline/upload/attachment/image/20160302/20160302145011_94668.jpg Solution 考虑怎么卖最赚钱: 肯定是只卖不买啊(笑) 虽然说 阅读全文