Problem 1295. Bit Reversal

Created by @bmtran (Bryant Tran)

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 an unsigned integer</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:i/></w:rPr><w:t>x</w:t></w:r><w:r><w:t>, convert it to binary with</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:i/></w:rPr><w:t>n</w:t></w:r><w:r><w:t> bits, reverse the order of the bits, and convert it back to an integer.</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

1372 Solutions
687 Solvers

Last Solution submitted on Jan 26, 2022

Last 200 Solutions

Problem Comments

Solution Comments

Solution 6868824

1 Comment

1 Comment

Ben Cullivan on 10 Nov 2021

Great problem to practice working with binary!

Solution 207786

3 Comments

3 Comments

Christopher on 25 Feb 2013

From now on, anytime I can chain together a composition of functions, I will never exceed a Cody score of 12! Thank you!

Alfonso Nieto-Castanon on 26 Feb 2013

I also would encourage people not to submit this sort of dynamic expression regexp trick solutions indiscriminately. Having said that, and just for reference, you can push this down to a Cody score of 10... (hint1: use varargin; hint2: use 'command syntax' instead of 'function syntax').

Ned Gulley on 27 Feb 2013

To keep Cody from degenerating into a bunch of unreadable party tricks, we've blocked usage of eval, evalc, and a few others. But regexp is too important for us to block, so this trick will remain available into the foreseeable future. Which means, to back up Alfonso's comment, please don't abuse it. It's funny once, and then it just gets annoying.

Problem Recent Solvers687

Problem Tags

bit reversal plus15

Community Treasure Hunt

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

Start Hunting!

Problem 1295. Bit Reversal

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers687

Suggested Problems

More from this Author56

Problem Tags

Community Treasure Hunt

Problem 1295. Bit Reversal

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers687

Suggested Problems

More from this Author56

Problem Tags

Community Treasure Hunt

Players