Cody

Problem 611. surrounded matrix

Solution 1298755

Submitted on 18 Oct 2017 by Jos (10584)
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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))

A = 0 A = 0 0 0 0 0 0 0 0 0 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))

A = 2 2 2 2 2 2 A = 2 2 2 0 0 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 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))

A = 0 0 0 0 0 0 0 0 0 0 0 0 A = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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))

A = -1 A = -1 0 0 0 0 0 0 0 0 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))

A = 0 3 6 1 4 7 2 5 8 A = 0 3 6 0 0 1 4 7 0 0 2 5 8 0 0 0 0 0 0 0 0 0 0 0 0 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