Cody

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

Solution 2741992

Submitted on 26 Jul 2020
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

### Test Suite

Test Status Code Input and Output
1   Pass
assert(isempty(regexp(evalc('type rot_hardway'),'(eval|fliplr|flipud|flipdim|rot90|)')))

2   Fail
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))

Output argument "y" (and maybe others) not assigned during call to "rot_hardway". Error in Test2 (line 3) assert(isequal(rot_hardway(x),y_correct))

3   Fail
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))

Output argument "y" (and maybe others) not assigned during call to "rot_hardway". Error in Test3 (line 3) assert(isequal(rot_hardway(x),y_correct))

4   Fail
x = magic(9); y_correct = rot90(magic(9)); assert(isequal(rot_hardway(x),y_correct))

Output argument "y" (and maybe others) not assigned during call to "rot_hardway". Error in Test4 (line 3) assert(isequal(rot_hardway(x),y_correct))