how to rotate 90 degrees clockwise

Question: You are givenNXN2D matrix representing an image. Rotate the image by 90 degrees (clockwise ). Follow up:Cocould you do this in-place? Analysis: The two-dimensional array a [n] [N] rotates 90 degrees clockwise. To solve this problem, the

Rotate a 4x4 array counter-clockwise for 90 degrees and then output it. Random Input of the original array data is required, 4 X degrees // Rotate a 4x4 array counter-clockwise for 90 degrees and then output it. The original array data must be

Use homogeneous coordinates to transform the Matrix /* Input a character matrix of N * n, rotate it counter-clockwise for 90 degrees, and then output:After calculation, the transformation matrix of the N * n square matrix Rotating 90 degrees

public class Rotateimage {public void rotate (int[][] matrix) {if (matrix.length = = 1 && matrix[0].length = = 1) {retur n;} int n = matrix.length;for (int i = 0; i 　　Rotate image,n*n matrix clockwise rotation 90 degrees

CC150: rotate a matrix 90 degreesAn image is represented as a matrix of n X n, and a function is written to rotate the image 90 degrees. No extra storage spaceWe assume that we want to rotate the image 90 degrees counter-clockwise. The source image

Html5+canvas mobile phone photo upload, found that the iOS mobile phone upload photos will be rotated counterclockwise 90 degrees, horizontal shot without this problem, the Android phone is not the problem. So the idea to solve this problem is to

A while ago a friend encountered such a problem: the image in situ clockwise rotation 90 degrees, do not open up new space. This is a seemingly simple question, and it is not easy to study and find out. After some exploration, finally found the

Rotate the 90-degree output binary tree counterclockwise (Data Structure Test 2) and the 90-degree Binary Tree Rotating a 90-degree print binary tree in a counter-clockwise manner is a special medium-order traversal algorithm. Rotate 90 degrees

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Data Structure Analysis: Two-dimensional arrays are used for Matrix storage. However, to store the converted matrix, two-dimensional arrays must be defined for storage because the rows and columns cannot be equal. Question Analysis: The key lies in