Problem 583. Implement a counter

Created by David Hruska

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>Write a function that returns a function that counts the number of times it is invoked. Example:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[>> h = counter;\n>> h()\nans =\n     1\n>> h()\nans =\n     2\n>> h()\nans =\n     3]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Note: your solution</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:b/></w:rPr><w:t>cannot</w:t></w:r><w:r><w:t> use persistent variables.</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

886 Solutions
93 Solvers

Last Solution submitted on Feb 01, 2023

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers93

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 583. Implement a counter

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers93

Suggested Problems

More from this Author2

Problem Tags

Community Treasure Hunt

Problem 583. Implement a counter

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers93

Suggested Problems

More from this Author2

Problem Tags

Community Treasure Hunt

Players