You are given the number of rows n_rows and number of columns n_cols of a 2D binary matrix where all values are initially 0. Write a function flip ...
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 ...
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You are given the number of rows n_rows and number of columns n_cols of a 2D binary matrix where all values are initially 0. Write a function flip ...
Given a binary matrix A, we want to flip the image horizontally, then invert it, and return the resulting image. To flip an image ...
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 ...
numpy.flipud numpy.flipud(m)[source] Flip array in the up/down direction. Flip the entrie ...
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 ...
Given a balanced parentheses string `S`, compute the score of the string based on the following rule: () has score 1 AB has score A + B, where ...
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 ...
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 ...