枚舉法（一）

枚舉法 主要需要儘量減小枚舉的次數，排除不必要的枚舉。可通過事先排好順序等方法。 POJ 1681 Painter's Problem Description There is a square wall which is made of n*n small square bricks. Some bricks are white while some bricks are yellow. Bob

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