GA_Traffic The Traveling Salesman Problem (TSP) is maybe the archetypical problem in combinatorial optimization. This problem and its generalizations, vehicle routing problems, have been studied for more than thirty years two entire monographs are devoted to the subject [34, 26]. Since the TSP is NP-hard, polynomial-time approximation algorithms are usually studied. However, usually the approaches to the study of vehicle routing problems adopt an offline point of view: the input is entirely known beforehand. In many applications, this is actually not the case since the instance becomes known in an online fashion, time after time. Even determining when the instance is completely given could be impossible. The need for an online model then arises naturally.

Ga.java

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