Rotate the image by 90 degrees (clockwise). Follow up: Could you do this in-place? class Solution { public: void rotate(vector<vector<int> > &matrix) { //方法1:tempMatrix[j][n-1-i] = matrix[i][j]; 置换 //方法2:先对角线翻转,再中间线上下翻转 int n,i,j,temp; n=matrix.size...
LeetCode——Rotate Image(二维数组顺时针旋转90度) 问题: You are given annxn2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Follow up: Could you do this in-place? 分析: 二维数组a[n][n]顺时针旋转90度,要解决这个问题,无疑,第一件事儿就是找规律。 当n=1时,...
Rotate the image by 90 degrees (clockwise). Note: You have to rotate the imagein-place, which means you have to modify the input 2D matrix directly. DO NOT allocate another 2D matrix and do the rotation. 翻译:你有一个n*n 的2D矩阵表示一个图像。 将图像旋转90度(顺时针)。 注意: 你必须...
题出自https://leetcode.com/problems/rotate-image/ 内容为: You are given annxn2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Follow up: Could you do this in-place? 简单的说就是给出一个n*n的二维数组,然后把这个数组进行90度顺时针旋转,而且不能使用额外的存储空间。
The rectangle is rotated 90 degrees clockwise. Which picture shows the result? A. Picture A B. Picture B C. Picture C D. Picture D 相关知识点: 试题来源: 解析 A。本题考查图形旋转的知识。长方形顺时针旋转 90 度,A 选项符合旋转后的结果。
Rotate the image by 90 degrees (clockwise). Follow up: Could you do this in-place? 简单的说就是给出一个n*n的二维数组,然后把这个数组进行90度顺时针旋转,而且不能使用额外的存储空间。 最初拿到这道题想到的就是找出每个坐标的旋转规律。假设我们是2*2的矩阵: ...
I have aUIImagethat isUIImageOrientationUp(portrait) that I would like to rotate counter-clockwise by 90 degrees (to landscape). I don't want to use aCGAffineTransform. I want the pixels of theUIImageto actually shift position. I am using a block of code (shown below) originally intende...
You are given annxn2Dmatrixrepresenting an image, rotate the image by 90 degrees (clockwise). You have to rotate the imagein-place, which means you have to modify the input 2D matrix directly.DO NOTallocate another 2D matrix and do the rotation. ...
A. clockwise B. counterclockwise C. forward D. backward 相关知识点: 试题来源: 解析 A。本题考查旋转方向的词汇。A 选项“clockwise”表示顺时针,B 选项“counterclockwise”表示逆时针,C 选项“forward”表示向前,D 选项“backward”表示向后。根据常识,正方形通常是顺时针旋转 90 度,所以选 A。
Rotate the image by 90 degrees (clockwise). Note: You have to rotate the imagein-place, which means you have to modify the input 2D matrix directly.DO NOTallocate another 2D matrix and do the rotation. Example 1: Giveninput matrix= [ [1,2,3], [4,5,6], [7,8,9]],rotate the in...