NWC and LCM codes in Matlab

I need North-West Corner and Least Cost Method.

My inputs are:

c=[10 2 20 11

12 7 9 20

4 14 16 18];

s=[15 25 10];

d=[5 15 15 15];

..........................................................................................................

I want my output like this:

I found North-West Corner and Least Cost Method: https://it.mathworks.com/matlabcentral/fileexchange/67001-solving-transportation-problem-with-north-west-corner-rule-stepping-stone-method

coded by Warut Boonphakdee

but there are 4 methods and 4 outputs with together. I could not parse and compile the codes.

I want just North-West Corner and Least Cost Method and output like above.

I would be glad if you help me.