Cody

Problem 798. Rotate input square matrix 90 degrees CCW without rot90

Solution 116469

Submitted on 20 Jul 2012 by Cris Luengo
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

This solution is outdated. To rescore this solution, sign in.

Test Suite

Test Status Code Input and Output
1   Pass
%% x = [1 2 3;4 5 6;7 8 9]; y_correct = [3 6 9;2 5 8;1 4 7]; assert( isequal(rot_hardway(x),y_correct) && isempty(regexp(evalc('type rot_hardway'),'(eval|fliplr|flipud|flipdim|rot90|)')) )

2   Pass
%% x = [sqrt(-1) 2 3;4 5 6;7 8 9]; y_correct = [3 6 9;2 5 8;sqrt(-1) 4 7]; assert( isequal(rot_hardway(x),y_correct) && isempty(regexp(evalc('type rot_hardway'),'(eval|fliplr|flipud|flipdim|rot90|)')) )

3   Pass
%% x = magic(9); y_correct = rot90(magic(9)); assert( isequal(rot_hardway(x),y_correct) && isempty(regexp(evalc('type rot_hardway'),'(eval|fliplr|flipud|flipdim|rot90|)')) )

Suggested Problems

More from this Author3

Community Treasure Hunt

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

Start Hunting!