bring zeros on top of a matrix

hi, i need to write a function which brings all the zeros that are on a given matrix at the top of it.

for example, if i my matrix is

4 5 0 6

3 0 5 7

0 3 4 6

the output would be:

0 0 0 4

5 6 3 5

7 3 4 6

the answer needs to use loops

[Dyuman Joshi]

@ALESSIO I have edited my answer accordingly

Answer 1

[Dyuman Joshi]

Assuming elements are sorted row-wise

A=[4 5 0 6;3 0 5 7;0 3 4 6];

"the answer needs to use loops"

B=A';
C=B(:)';
for ix = find(C==0)
    C(1:ix)=[C(ix) C(1:(ix-1))];
end
C=reshape(C',size(B))'

C = 3×4

0 0 0 4 5 6 3 5 7 3 4 6

%Initial vectorized approach
%B=A';
%C=reshape([B(B==0);B(B~=0)],size(B))';