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好像数据有点问题3 1 5 1 1 5 5 答案是2才能够AC（也就是说只要对点染色就好了） 但是1 1和5 5只是将2个端点染色，（1，5)这个开区间还是原来的颜色呢，个人认为答案应该是3！！ WA了好久！！ Followed by: Post your reply here: |
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