MATLAB: How to extend/add elements to an array

Question

I want to extend an array at the points were the array are 0.

For example an array like this:

A=[2 3 4 5 0 1 4 5 5 0 3 4 0 2 0 ];

At each zero in A i want to extend by B=[3 2 3 5];

so the new array will be:

C=[2 3 4 5 0 0 0 1 4 5 5 0 0 3 4 0 0 0 2 0 0 0 0 0];

Answer 1

A = [2 3 4 5 0 1 4 5 5 0 3 4 0 2 0 ];
B = [3 2 3 5];
out = A(sort([find(A),repelem(find(A == 0),B)]));