title: how to solve MTSP(multiple travelling salesman problem) by ACO (Ant colony optimization)algorithm?
body: <p>I try to solve MTSP (multiple travelling salesman problem) by ACO ,
  I coded TSP by ACO and it is clear how it works ,but when i try to solve MTSP there are a lot of things not clear, how to choose the number of cities for each Ant ,how represent the route , how to update the Pheromone matrix,</p>