# Change parameter in Karaboga's code of ABC algorithm

I'm working on a problem and need to use Karaboga's code of the ABC algorithm but I have some questions...

Does this formula for calculating a parameter have to be changed:

{/v_{ij}=x_{ij}+\phi_{ij}(x_{kj}-x_{ij}) */}


A standard one or this what Karaboga see is better for algorithm.

The second is the same question for this formula of calculating fitness:

{fFitness(ind)=1./(fObjV(ind)+1)}


Link to ABC algorithm coded using C programming language