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晕哦,1201AC,1716WA?结果仔细一看1201中a<=b,1716中a<b,所以建图就不一样,一改就AC了,不过还是有点朦胧,求高手指教啊,谢了。 1201中我建图是:p1[i]=a-1,p2[i]=b;1716中我是p1[i]=a,p2[i]=b+1; 没想明白为什么要这样建图,朦胧的就过了。 Followed by:
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