Cody

# Problem 611. surrounded matrix

Solution 2827014

Submitted on 13 Aug 2020 by Yin-Lung Wong
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### Test Suite

Test Status Code Input and Output
1   Pass
x = 1; y_correct = ones(3); assert(isequal(surrounded(x),y_correct))

row = 1 col = 1 B = 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1

2   Pass
x = [3 3 3;3 3 3]; y_correct = [1 1 1 1 1;1 3 3 3 1; 1 3 3 3 1; 1 1 1 1 1]; assert(isequal(surrounded(x),y_correct))

row = 2 col = 3 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 3 3 3 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 3 3 3 1 1 3 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 3 3 3 1 1 3 3 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 3 3 3 1 1 3 3 3 1 1 1 1 1 1

3   Pass
x = ones(3,4); y_correct = ones(5,6); assert(isequal(surrounded(x),y_correct))

row = 3 col = 4 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

4   Pass
x = [0]; y_correct = ones(3); y_correct(2,2) = 0; assert(isequal(surrounded(x),y_correct))

row = 1 col = 1 B = 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 0 1 1 1 1

5   Pass
x = reshape(1:9,[3,3]); y_correct = [1 1 1 1 1; 1 1 2 3 1; ... 1 4 5 6 1; 1 7 8 9 1; 1 1 1 1 1]'; assert(isequal(surrounded(x),y_correct))

row = 3 col = 3 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 4 7 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 4 7 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 4 7 1 1 2 5 1 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 4 7 1 1 2 5 8 1 1 1 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 4 7 1 1 2 5 8 1 1 3 1 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 4 7 1 1 2 5 8 1 1 3 6 1 1 1 1 1 1 1 B = 1 1 1 1 1 1 1 4 7 1 1 2 5 8 1 1 3 6 9 1 1 1 1 1 1

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