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Codeforces 675D Tree Construction
D. Tree ConstructionDuring the programming classes Vasya was assigned a difficult problem. However, he doesn't know how to code and was unable to find the solution in the Internet, so he asks you to...原创 2018-08-05 22:45:58 · 420 阅读 · 0 评论 -
Codeforces697C Lorenzo Von Matterhorn
Lorenzo Von MatterhornBarney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a bidirectional road between intersections i and 2i ...原创 2018-08-14 13:11:46 · 309 阅读 · 0 评论