Problem 751. Implement simple rotation cypher

Created by Doug Hull

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{"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>If given a letter from the set:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[[abc...xyz]]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>and a shift, implement a shift cypher.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Example:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA['abc']]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>with a shift of -1 yields</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA['zab']]></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>"}]}

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Solution Stats

2641 Solutions
912 Solvers

Last Solution submitted on Oct 21, 2020

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

nhagen on 19 Mar 2015

outStr=char(mod(inStr+shift-97,26)+97);

jo gayong on 5 Jul 2019

I find this problem challenging.

Solution Comments

Solution 1094337

1 Comment

1 Comment

TAYALAN SIVALINGAM on 29 Dec 2016

Solution 429933

1 Comment

1 Comment

Liang MA on 10 Apr 2014

Covered negative shift this time

Solution 424878

1 Comment

1 Comment

Anthony on 9 Apr 2014

very straight forward solution that passes test suite but does not handle example in description correctly.

Solution 342653

1 Comment

1 Comment

shen on 31 Oct 2013

hello, what if shift >= 52 or shift < 0?

Solution 228775

1 Comment

1 Comment

Daniel Pereira on 16 Apr 2013

Does this work for negative shifts?

Solution 135228

1 Comment

1 Comment

Nicholas Howe on 5 Oct 2012

This is a sneaky way to get around the prohibition against using eval!

Problem Recent Solvers912

Problem Tags

asee cipher cryptography encoding lookup table modular arithmetic substitution cipher

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Problem 751. Implement simple rotation cypher

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Last 200 Solutions

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Problem 751. Implement simple rotation cypher

Solution Stats

Last 200 Solutions

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Problem Recent Solvers912

Suggested Problems

More from this Author52

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