Problem 2733. Evil Number

Created by Jan Orwat

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>Check if a given natural number is evil or not.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Read more at</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"https://oeis.org/A001969\"><w:r><w:t>OEIS</w:t></w:r></w:hyperlink><w:r><w:t>.</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

531 Solutions
216 Solvers

Last Solution submitted on Jul 22, 2021

Last 200 Solutions

Problem Comments

6 Comments

6 Comments

Show 3 older comments

rifat on 19 Jan 2015

are test #3 and #4 correct?

Jan Orwat on 19 Jan 2015

Sorry Rifat, I've messed up test cases. Rescored now.

rifat on 19 Jan 2015

Thanks :)

Lorenzo Valentini on 2 Sep 2016

Arrays are not a natural number..for the tests I mean

Jan Orwat on 2 Sep 2016

@Lorenzo, the input to solution function is always a single number. I've used arrayfun to make multiple tests in a single test case.

yurenchu on 24 Dec 2016

I think Test 3 and 4 are (still) faulty. The functions "any" and "all" must be swapped.

Problem Recent Solvers216

Problem Tags

easy number theory oeis pop series

Community Treasure Hunt

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

Start Hunting!

Problem 2733. Evil Number

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers216

Suggested Problems

More from this Author40

Problem Tags

Community Treasure Hunt

Problem 2733. Evil Number

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers216

Suggested Problems

More from this Author40

Problem Tags

Community Treasure Hunt

Players