## Data Source
This is a random data set generated by the author based on data pcb3038.tsp.gz in TSPLib (http://comopt.ifi.uni-heidelberg.de/software/TSPLIB95/tsp/) where the demand of each node is randomly generated by the author following  $U (0, 100)$, the same as [Reinelt 1994](http://dx.doi.org/10.5772/5583).


 
