Problem 611. surrounded matrix

Solution 1965086

Submitted on 7 Oct 2019 by wireline henry

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Test	Status	Code Input and Output
1	Pass	x = 1; y_correct = ones(3); assert(isequal(surrounded(x),y_correct))
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))
3	Pass	x = ones(3,4); y_correct = ones(5,6); assert(isequal(surrounded(x),y_correct))
4	Pass	x = [0]; y_correct = ones(3); y_correct(2,2) = 0; assert(isequal(surrounded(x),y_correct))
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))