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leetcode-cn/problem (English)/旋转矩阵(English) [rotate-matrix-lcci].html
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<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>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<pre>
Given <strong>matrix</strong> =
[
[1,2,3],
[4,5,6],
[7,8,9]
],
Rotate the matrix <strong>in place. </strong>It becomes:
[
[7,4,1],
[8,5,2],
[9,6,3]
]
</pre>
<p><strong>Example 2:</strong></p>
<pre>
Given <strong>matrix</strong> =
[
[ 5, 1, 9,11],
[ 2, 4, 8,10],
[13, 3, 6, 7],
[15,14,12,16]
],
Rotate the matrix <strong>in place. </strong>It becomes:
[
[15,13, 2, 5],
[14, 3, 4, 1],
[12, 6, 8, 9],
[16, 7,10,11]
]
</pre>
<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>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<pre>
Given <strong>matrix</strong> =
[
[1,2,3],
[4,5,6],
[7,8,9]
],
Rotate the matrix <strong>in place. </strong>It becomes:
[
[7,4,1],
[8,5,2],
[9,6,3]
]
</pre>