Problem 412. Back to basics 22 - Rotate a matrix

Solution 1817561

Submitted on 16 May 2019 by Chris Coote

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Test	Status	Code Input and Output
1	Pass	x = [1 2; 3 4]; y_correct = [2 4; 1 3]; assert(isequal(rotateBy90(x),y_correct)) ans = 2 4 1 3
2	Pass	x = [1 2 3; 4 5 6; 7 8 9]; y_correct = [ 3 6 9; 2 5 8; 1 4 7]; assert(isequal(rotateBy90(x),y_correct)) ans = 3 6 9 2 5 8 1 4 7

Test

Status

Code Input and Output

Pass

x = [1 2; 3 4]; y_correct = [2 4; 1 3]; assert(isequal(rotateBy90(x),y_correct))

ans = 2 4 1 3

Pass

x = [1 2 3; 4 5 6; 7 8 9]; y_correct = [ 3 6 9; 2 5 8; 1 4 7]; assert(isequal(rotateBy90(x),y_correct))

ans = 3 6 9 2 5 8 1 4 7