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WangTianzhuo's blog

By WangTianzhuo, history, 11 months ago, In English

I can only solve 3 problems in Div.2 all the time. I leant dp, trees and graphs, but I still can't solve Div.2 D by myself. Because of that, I can't get higher rating. Can anybody help me? I am stuck at 1600 ~ 1700.

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