Given a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral order.For example,Given the following matrix:[ [ 1, 2, 3 ],...
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其他好文 时间:
2014-11-20 21:42:11
阅读次数:
156
You are given an n x n 2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place? ...
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其他好文 时间:
2014-11-20 13:20:00
阅读次数:
289
较完整的描述了,向量的加减乘除,矩阵的乘法,矩阵的转置以及矩阵的逆矩阵...
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移动开发 时间:
2014-11-20 09:09:04
阅读次数:
917
给定一个只含0和1的数组,求含1的最大矩形面积。Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area.这样的题一般看来都...
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其他好文 时间:
2014-11-19 23:44:02
阅读次数:
316
1 Vectorization 简述Vectorization 翻译过来就是向量化,各简单的理解就是实现矩阵计算。为什么MATLAB叫MATLAB?大概就是Matrix Lab,最根本的区别于其他通用语言的地方就是MATLAB可以用最直观的方式实现矩阵运算,MATLAB的变量都可以是矩阵。通过Vectorization,我们可以将代码变得极其简洁,虽然简洁带来的问题就是其他人看你代码就需要研究一番...
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其他好文 时间:
2014-11-19 22:22:52
阅读次数:
370
问题描述:
Write an efficient algorithm that searches for a value in an
m x n matrix. This matrix has the following properties:
Integers in each row are sorted from left to right.The first integer o...
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其他好文 时间:
2014-11-19 22:21:45
阅读次数:
171
Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.click to show follow up.Follow up:Did you use extra space?A s...
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其他好文 时间:
2014-11-19 20:25:11
阅读次数:
248
Let $x,y,z$ be linearly independent vectors in $\scrH$. Find a necessary and sufficient condition that a vector $w$ mush satisfy in order that the bil...
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其他好文 时间:
2014-11-19 18:28:24
阅读次数:
183
Write an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each row are sorted from l...
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其他好文 时间:
2014-11-19 18:24:27
阅读次数:
147
Let $A$ and $B$ be two matrices (not necessarily of the same size). Relative to the lexicographically ordered basis on the space of tensors, the matri...
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其他好文 时间:
2014-11-19 18:20:50
阅读次数:
142