Problem 42323. With apologies to William Blake

Created by James

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=\"code\"/></w:pPr><w:r><w:t><![CDATA[ Coder Coder, typing fast\n Sitting at your desk, aghast.\n What immortal MATLAB script\n will solve this problem, nice and quick?]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>You are given a number. Your task is to write a MATLAB script that will calculate the smallest positive number you need to add to your original number so that each digit in your sum will have horizontal symmetry. For this problem, those numbers are [0 1 3 8]</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>For example:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"ListParagraph\"/><w:numPr><w:numId w:val=\"1\"/></w:numPr></w:pPr><w:r><w:t>If you are given 27, your script should output 3, as 27+3=30. Both 3 and 0 have horizontal symmetry.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"ListParagraph\"/><w:numPr><w:numId w:val=\"1\"/></w:numPr></w:pPr><w:r><w:t>If you are given 801, your script should output 0, as 801+0=801. 8, 0 and 1 are all horizontally symmetric.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"ListParagraph\"/><w:numPr><w:numId w:val=\"1\"/></w:numPr></w:pPr><w:r><w:t>If you are given 900, your answer should be 100, as 900+100=1000, which is the next highest number that is horizontally symmetric.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Good luck. May you become a poet, and not even know it.</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

165 Solutions
39 Solvers

Last Solution submitted on Aug 19, 2021

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Jean-Marie Sainthillier on 22 Aug 2015

Always difficult with James.

goc3 on 18 Aug 2021

James is the master of deceptively difficult Cody problems.

Solution Comments

Solution 673635

3 Comments

3 Comments

Jan Orwat on 22 May 2015

This one fails when only last digit is incorrect. James, could you add some cases to eliminate it, please? 2, 819 or 889 should be enough.

James on 22 May 2015

Done, and you're correct: it failed 88887. Nice catch.

Jan Orwat on 22 May 2015

Thanks!

Solution 673220

2 Comments

2 Comments

James on 21 May 2015

"% this code is stupid enough to make me want to throw something to my computer." - We've *all* written code like that, bainhome. No worries.

bainhome on 22 May 2015

suddenly,madness just came up from nowhere.lol

Solution 672946

1 Comment

1 Comment

James on 22 May 2015

Whoa. That is some serious regexprep-fu you have there, LY Cao.

Problem Recent Solvers39

Problem Tags

symmetry tyger tyger

Community Treasure Hunt

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

Start Hunting!

Problem 42323. With apologies to William Blake

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers39

Suggested Problems

More from this Author80

Problem Tags

Community Treasure Hunt

Problem 42323. With apologies to William Blake

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers39

Suggested Problems

More from this Author80

Problem Tags

Community Treasure Hunt

Players