Originally posted by: qtbgo

Hi, Suppose we have the following definition. Now, I want to minimize the switch number of types of intervals in p, how to do it? For example, interval type sequence 1,1 in p is better than 1, 2 .  

int T[i in 1..n]=...;

dvar interval A[i in 1..n] size d[i];
dvar sequence p in A types T; 

Originally posted by: PhilippeLaborie

Something like:
  minimize sum(i in 1..n) (typeOfNext(p,A[i],T[i],T[i])!=T[i])

Philippe