Cody

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

Solution 2617084

Submitted on 26 Jun 2020
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### 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))

ans = 3 6 9

Assertion failed.

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))

ans = 3 6 9

Assertion failed.

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

ans = 45 46 56 66 76 5 15 25 35 34 44 54 55 65 75 4 14 24 23 33 43 53 63 64 74 3 13 12 22 32 42 52 62 72 73 2

Assertion failed.

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