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42 lines
685 B
HTML
42 lines
685 B
HTML
<p>Given an image represented by an N x N matrix, where each pixel in the image is 4 bytes, write a method to rotate the image by 90 degrees. Can you do this in place?</p>
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<p> </p>
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<p><strong>Example 1:</strong></p>
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<pre>
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Given <strong>matrix</strong> =
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[
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[1,2,3],
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[4,5,6],
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[7,8,9]
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],
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Rotate the matrix <strong>in place. </strong>It becomes:
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[
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[7,4,1],
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[8,5,2],
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[9,6,3]
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]
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</pre>
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<p><strong>Example 2:</strong></p>
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<pre>
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Given <strong>matrix</strong> =
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[
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[ 5, 1, 9,11],
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[ 2, 4, 8,10],
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[13, 3, 6, 7],
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[15,14,12,16]
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],
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Rotate the matrix <strong>in place. </strong>It becomes:
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[
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[15,13, 2, 5],
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[14, 3, 4, 1],
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[12, 6, 8, 9],
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[16, 7,10,11]
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]
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</pre>
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