[HackerEarth] Nandu and Rani (husband and wife) live in a city consisting of N houses (1, 2, 3, ... , N) and N-1 roads, each road being of length 1 Km and connecting some 2 houses. Moreover, every hou - 题解

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题号 P16820
标题 [HackerEarth] Nandu and Rani (husband and wife) live in a city consisting of N houses (1, 2, 3, ... , N) and N-1 roads, each road being of length 1 Km and connecting some 2 houses. Moreover, every hou
难度 普及
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