You probably find a different solution each time and the computation time is also different each time, because random numbers are used. If the value is less than 1, then the process has terminated without finding a solution. The method of computation If you are interested in the method of coloring using CCM, see the page of computation method . The coordinates of the map in the above applet were hand-inputted by Yuzuru Sato, who was a student in the University of Tokyo, in 1992. I thank him.
References See the section of references in the home page to see notes.
The source program of the above applet is here. However, this applet is the worst in the sense of object oriented programming for the sake of shortening its loading time. That means that everything is packed into one class.