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PORotating 2D array for 45 degree
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  1. PORotating 2D array for 45 degree
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    copied!<p>I have a matrix with possible sizes of 3x3 &amp; 5x5 &amp; 7x7 and I want to rotate it 45 degree.</p> <p>For example, this can be my matrix:</p> <pre><code>5 7 3 4 6 1 2 6 4 7 4 3 5 1 7 5 2 3 4 8 1 6 4 8 7 </code></pre> <p>The result should be this:</p> <pre><code>3 4 6 7 7 7 6 4 1 8 5 2 5 4 7 1 3 2 3 8 4 5 1 6 4 </code></pre> <p>code:</p> <pre><code>{ int MatrixSize; cout&lt;&lt;"Enter Matrix's Size:"&lt;&lt;endl; cin&gt;&gt;MatrixSize; while(!(MatrixSize == 3 || MatrixSize == 5 || MatrixSize == 7)) { cout&lt;&lt;"Invalid Matrix Size! Try Again:"&lt;&lt;endl; cin&gt;&gt;MatrixSize; } srand (time(NULL)); int Matrix[7][7]; for(int i = 0;i&lt;MatrixSize;i++) for(int j=0;j&lt;MatrixSize;j++) Matrix[i][j] = rand() % 9 + 1; for(int i = 0;i&lt;MatrixSize;i++) { for(int j=0;j&lt;MatrixSize;j++) cout&lt;&lt;Matrix[i][j]&lt;&lt;" "; cout&lt;&lt;endl; } cout&lt;&lt;endl; int Result[7][7]; for(int i = 0;i&lt;MatrixSize;i++) { for(int j=0;j&lt;MatrixSize;j++) { bool upperCorner = false; if(i &gt;= j) { upperCorner = true; } //the outer round should be rotated for MatrixSize/2 and for every round you go near to center in decreses with 1 until u reach the center and no rotation would be needed int round = min(i,j); int AmountToChange = MatrixSize - round; if(round == i) { if(upperCorner) { } } Result[desti][destj] = Matrix[i][j]; } } for(int i = 0;i&lt;MatrixSize;i++) { for(int j=0;j&lt;MatrixSize;j++) cout&lt;&lt;Result[i][j]&lt;&lt;" "; cout&lt;&lt;endl; } cout&lt;&lt;endl; </code></pre>
 

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