《算法競賽入門經典》習題4-2 正方形 （Squares,ACM,ICPC World Finals 1990,UVa201）

原題及翻譯 A children’s board game consists of a square array of dots that contains lines connecting some of the pairs of adjacent dots. 兒童棋盤遊戲由一組正方形的點組成，這些點包含連接一些相鄰點對的線。 One part of the game requires that

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