Problem 44102. Stop a ZigZag scanning N*N Matrix at any diag you want

Created by Said BOUREZG

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","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\"?><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>Suppose that we have a 2-D matrix and we try to obtain a 1-D array in zig-zag order, but not all values of our 2-D matrix e.g., for matrix</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>x= [1 2 3; 4 5 6; 7 8 9]</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>the resulting 1-D array should be</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>stop_zig(x,3)=[ 1 2 4 7 5 3]</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>stop_zig(x,1)=1</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>stop_zig(x,-1)=9</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>stop_zig(x,-2)=[9 8 6]</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

22 Solutions
11 Solvers

Last Solution submitted on Mar 23, 2021

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

yurenchu on 25 Apr 2017

I'd suggest adding test cases in which n (or abs(n)) is larger than the dimension of x; for example, x is a 4-by-4 matrix and n = 6.

Solution Comments

Solution 1540510

1 Comment

1 Comment

bainhome on 26 May 2018

smooth~ basically same idea, my solution however is bit of inflexible.

Solution 1170887

1 Comment

1 Comment

yurenchu on 25 Apr 2017

Will work also for non-square input matrix x.

Problem Recent Solvers11

Problem Tags

matrix zigzag

Community Treasure Hunt

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

Start Hunting!

Problem 44102. Stop a ZigZag scanning N*N Matrix at any diag you want

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers11

Suggested Problems

More from this Author14

Problem Tags

Community Treasure Hunt

Problem 44102. Stop a ZigZag scanning N*N Matrix at any diag you want

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers11

Suggested Problems

More from this Author14

Problem Tags

Community Treasure Hunt

Players