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2025-01-09 20:29:41 +08:00
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leetcode-cn/problem (Chinese)/变为棋盘 [transform-to-chessboard].html
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<p>一个&nbsp;<code>n x n</code>&nbsp;的二维网络&nbsp;<code>board</code>&nbsp;仅由&nbsp;<code>0</code>&nbsp;和&nbsp;<code>1</code>&nbsp;组成&nbsp;。每次移动，你能任意交换两列或是两行的位置。</p>
<p>一个&nbsp;<code>n x n</code>&nbsp;的二维网络&nbsp;<code>board</code>&nbsp;仅由&nbsp;<code>0</code>&nbsp;和&nbsp;<code>1</code>&nbsp;组成&nbsp;。每次移动，你能交换任意两列或是两行的位置。</p>
<p>返回 <em>将这个矩阵变为<strong>&nbsp; “棋盘”&nbsp;&nbsp;</strong>所需的最小移动次数&nbsp;</em>。如果不存在可行的变换，输出 <code>-1</code>。</p>