Discrete variables in Genetic algorithm problem

Hi there,

I have an optimization problem and my variables are discrete. For instance t=[1 3 5 12 18] and corresponding V=[11 22 41 56 61]. fitness function is f(t,v). Each V is correspond to t. The thing is I am interested to minimize the length of vector but do not now how I can do it in Genetic algorithm.

Thanks

[Geoff Hayes]

Adam - what do you mean by each V is correspond to t? You state that you are trying to minimize the length of vector but which vector is that - V or t? What does your fitness function f return in terms of a value?