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 1803306

Submitted on 2 May 2019 by goc3
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### Test Suite

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

ans = 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))

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

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

ans = 0 0 0 0 0 0 0 0 3 10 10 5 7 0 0 7 2 8 4 10 0 0 7 3 1 8 10 0 0 1 7 2 1 4 0 0 0 0 0 0 0 0

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

ans = 0 0 0 0 0 0 0 0 7 10 4 4 4 0 0 5 6 10 9 9 0 0 10 4 4 7 1 0 0 8 6 9 5 1 0 0 0 0 0 0 0 0

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

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

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

ans = 0 0 0 0 0 0 0 0 8 7 2 10 1 0 0 4 10 10 5 5 0 0 8 5 7 10 6 0 0 9 2 10 3 4 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)))

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