Cody

# Problem 44887. Given a matrix A (size m x n) create a matrix B (size m+2 x n+2) which consists of matrix A surrounded by zeros. See Example below:

Solution 1812437

Submitted on 10 May 2019 by elias zoarob
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### Test Suite

Test Status Code Input and Output
1   Pass
x = [1]; y_correct = [0 0 0 0 1 0 0 0 0]; assert(isequal(zeroWrap(x),y_correct))

0 0 0 0 1 0 0 0 0

2   Pass
x = randi(10,4,5); m=zeroWrap(x); assert(isequal(m(2:end-1,2:end-1),x))

0 0 0 0 0 0 0 0 5 2 10 6 6 0 0 5 6 4 9 5 0 0 7 8 9 9 4 0 0 8 10 6 1 10 0 0 0 0 0 0 0 0

3   Pass
x = randi(10,4,5); m=zeroWrap(x); assert(isequal(sum(m(1,:)),0))

0 0 0 0 0 0 0 0 3 9 10 5 1 0 0 8 4 5 5 5 0 0 4 7 9 4 5 0 0 4 4 7 7 1 0 0 0 0 0 0 0 0

4   Pass
x = randi(10,4,5); m=zeroWrap(x); assert(isequal(sum(m(end,:)),0))

0 0 0 0 0 0 0 0 5 2 10 8 9 0 0 1 5 9 2 6 0 0 9 5 3 4 6 0 0 6 6 10 6 6 0 0 0 0 0 0 0 0

5   Pass
x = randi(10,4,5); m=zeroWrap(x); assert(isequal(sum(m(:,1)),0))

0 0 0 0 0 0 0 0 8 7 3 9 1 0 0 1 9 2 8 1 0 0 10 9 1 6 5 0 0 3 3 6 8 10 0 0 0 0 0 0 0 0

6   Pass
x = randi(10,4,5); m=zeroWrap(x); assert(isequal(sum(m(:,end)),0))

0 0 0 0 0 0 0 0 7 9 6 4 5 0 0 6 3 9 4 7 0 0 3 6 10 2 4 0 0 4 7 6 7 10 0 0 0 0 0 0 0 0

7   Pass
x = randi(10,4,5); m=zeroWrap(x); assert(isequal(size(m)-2,size(x)))

0 0 0 0 0 0 0 0 3 8 1 3 7 0 0 10 7 1 7 2 0 0 10 3 9 3 4 0 0 9 6 1 5 9 0 0 0 0 0 0 0 0