Problem 412. Back to basics 22 - Rotate a matrix

Created by Alan Chalker

Solve Later

Covering some basic topics I haven't seen elsewhere on Cody.

Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; 3 4] -> [2 4; 1 3]

Solve

Solution Stats

1073 Solutions
688 Solvers

Last Solution submitted on Jan 30, 2020

Last 200 Solutions

Problem Comments

4 Comments

4 Comments

Show 1 older comment

Nick on 29 Jun 2014

Very nice problem to solve

Chaya N on 22 Oct 2016

The test suite does not like the inbuilt function . Says there are too many output arguments!

Chaya N on 22 Oct 2016

Is there something wrong with the test suite? The assertion fails and I get the following message:

"Error using rotate Too many output arguments. Error in TestPoint1 (line 3) assert(isequal(rotate(x),y_correct))"

Aditya Jain on 23 Oct 2016

Yes it rotate is an inbuilt MATLAB function and it overshadows this. Changed the function name to rotateBy90

Solution Comments

Solution 179234

1 Comment

1 Comment

sea knowledge on 19 Dec 2012

quite easy

Problem Recent Solvers688

Problem Tags

Problem 412. Back to basics 22 - Rotate a matrix

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers688

Suggested Problems

More from this Author39

Problem Tags

Problem 412. Back to basics 22 - Rotate a matrix

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers688

Suggested Problems

More from this Author39

Problem Tags

Players