# how to rotate 90 degrees clockwise

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### Leetcode -- rotate image (two-dimensional array rotates 90degreesclockwise)

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 90degrees 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. 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

### Input an N * n character matrix, rotate it counter-clockwise for 90degrees, and then output

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

### Rotate image,n*n matrix clockwise rotation 90degrees

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 90degrees

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

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### Detailed use of exif.js to solve the iOS mobile phone upload photos rotated 90degrees _javascript tips

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

### OpenCV image in situ (without opening new space) rotate90degrees

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

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

### Easypusher mobile phone Live code push the image rotated 90degrees after the screen repeat the problem __ code

This article is from Easydarwin Open source team to develop Holo blog: Http://blog.csdn.net/holo_easydarwin Initially in doing Easypusher mobile phone live when encountered a problem: mobile phone vertical screen push live screen to Easydarwin and

### Rotate the matrix 90degreesclockwise

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

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