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 1807735

Submitted on 6 May 2019 by Lotan Scheinwald
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

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