Problem 288. Construct a string from letters and counts

Created by Alex Feinman

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>Given two input arrays like this: [5,3,1] ['a','b','c']</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Output a string that contains each letter the specified number of times, e.g.:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[    'aaaaabbbc']]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>If given an invalid input (for example, a negative number), output the string 'ERROR'.</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

446 Solutions
126 Solvers

Last Solution submitted on Dec 02, 2020

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

Alex Feinman on 8 Feb 2012

Now with improved tests, and reference solution (which I'm sure you can beat).

Problem Recent Solvers126

Problem Tags

error-checking strings

Community Treasure Hunt

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

Start Hunting!

Problem 288. Construct a string from letters and counts

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers126

Suggested Problems

More from this Author3

Problem Tags

Community Treasure Hunt

Problem 288. Construct a string from letters and counts

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers126

Suggested Problems

More from this Author3

Problem Tags

Community Treasure Hunt

Players