Problem 611. surrounded matrix

Created by Grzegorz Knor

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[A = [1 2 3\n     3 2 1]\n\nB = [1 1 1 1 1\n     1 1 2 3 1\n     1 3 2 1 1\n     1 1 1 1 1]]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>or</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[A = 4\n\nB = [ 1 1 1\n      1 4 1\n      1 1 1]]]></w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

2541 Solutions
720 Solvers

Last Solution submitted on Apr 19, 2021

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

goc3 on 24 Feb 2017

Additional test cases have been added.

William Katzianer on 11 Aug 2018

nice way to learn about matrix concatenation

Problem Recent Solvers720

Problem Tags

matrices

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 611. surrounded matrix

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers720

Suggested Problems

More from this Author9

Problem Tags

Community Treasure Hunt

Problem 611. surrounded matrix

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers720

Suggested Problems

More from this Author9

Problem Tags

Community Treasure Hunt

Players