原文:[LeetCode] 861. Score After Flipping Matrix 翻转矩阵后的分数

We have a two dimensional matrix A where each value is or . A move consists of choosing any row or column, and toggling each value in that row or column: changing all s to s, and all s to s. After ma ...

2019-04-08 23:55 0 1074 推荐指数:

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[LeetCode] Flipping an Image 翻转图像

Given a binary matrix A, we want to flip the image horizontally, then invert it, and return the resulting image. To flip an image ...

Sun Feb 03 07:56:00 CST 2019 1 1287
转矩阵(Rotate Matrix)的性质分析

  学过矩阵理论或者线性代数的肯定知道正交矩阵(orthogonal matrix)是一个非常好的矩阵,为什么这么说?原因有一下几点: 正交矩阵每一列都是单位矩阵,并且两两正交。最简单的正交矩阵就是单位阵。 正交矩阵的逆(inverse)等于正交矩阵的转置(transpose ...

Wed Aug 05 05:15:00 CST 2015 1 17743
翻转矩阵flipud和fliplr函数

numpy.flipud numpy.flipud(m)[source] Flip array in the up/down direction. Flip the entrie ...

Fri Jul 06 18:50:00 CST 2018 0 3165
转矩阵(Rotation Matrix)的推导及其应用

向量的平移,比较简单。 缩放也较为简单 矩阵如何进行计算呢?之前的文章中有简介一种方法,把行旋转一下,然后与右侧对应相乘。在谷歌图片搜索旋转矩阵时,看到这张动图,觉得表述的很清晰了。 稍微复杂一点的是旋转,如果只是二维也很简单(因为很直观),但因为是三维 ...

Wed Dec 06 00:00:00 CST 2017 3 53924
[LeetCode] Reshape the Matrix 重塑矩阵

In MATLAB, there is a very useful function called 'reshape', which can reshape a matrix into a new one with different size but keep its original ...

Thu May 04 07:22:00 CST 2017 3 4750
[LeetCode] 01 Matrix 零一矩阵

Given a matrix consists of 0 and 1, find the distance of the nearest 0 for each cell. The distance between two adjacent cells is 1. Example ...

Thu Mar 23 05:49:00 CST 2017 9 13601
 
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