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Yixght is a manager of the company called SzqNetwork(SN). Now she's very worried because she has just received a bad news which denotes that DxtNetwor 阅读全文
posted @ 2017-12-21 21:45
nimphy
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A game-board consists of N fields placed around a circle. Fields are successively numbered from1 to N clockwise. In some fields there may be obstacles 阅读全文
posted @ 2017-12-21 16:48
nimphy
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You are given a tree with N nodes. The tree’s nodes are numbered 1 through N and its edges are numbered 1 through N − 1. Each edge is associated with 阅读全文
posted @ 2017-12-21 15:39
nimphy
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