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 1814086

Submitted on 13 May 2019 by elias nekola
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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))

y = 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))

y = 0 0 0 0 0 0 0 0 10 1 10 10 10 0 0 8 5 6 2 10 0 0 5 10 10 2 9 0 0 9 3 10 10 3 0 0 0 0 0 0 0 0

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

y = 0 0 0 0 0 0 0 0 7 6 5 10 1 0 0 6 7 2 2 10 0 0 5 3 4 4 2 0 0 1 6 6 2 6 0 0 0 0 0 0 0 0

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

y = 0 0 0 0 0 0 0 0 1 4 8 4 4 0 0 8 2 5 10 3 0 0 8 7 9 9 2 0 0 7 5 1 5 3 0 0 0 0 0 0 0 0

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

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

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

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

y = 0 0 0 0 0 0 0 0 10 2 10 5 9 0 0 2 10 1 5 9 0 0 10 5 7 1 8 0 0 5 3 4 3 1 0 0 0 0 0 0 0 0