Cody

# Problem 4. Make a checkerboard matrix

Solution 1394606

Submitted on 26 Dec 2017
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### Test Suite

Test Status Code Input and Output
1   Pass
n = 5; a = [1 0 1 0 1; 0 1 0 1 0; 1 0 1 0 1; 0 1 0 1 0; 1 0 1 0 1]; assert(isequal(a,checkerboard(n)))

t = 25 s = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 u = 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 a = 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1

2   Fail
n = 4; a = [1 0 1 0; 0 1 0 1; 1 0 1 0; 0 1 0 1]; assert(isequal(a,checkerboard(n)))

t = 16 s = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 u = 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 a = 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0

Assertion failed.

3   Pass
n = 7; a = [1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1]; assert(isequal(a,checkerboard(n)))

t = 49 s = Columns 1 through 29 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Columns 30 through 49 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 u = Columns 1 through 29 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Columns 30 through 49 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 a = 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1