Interesting approach to bin packing problem and traveling sales man problem

https://en.wikipedia.org/wiki/Bin_packing_problem (aka https://en.wikipedia.org/wiki/Knapsack_problem)
https://pdfs.semanticscholar.org/5a73/5b0159c689c6fe3bc6d3e676d9b8c6475edb.pdf

https://en.wikipedia.org/wiki/Travelling_salesman_problem
https://en.wikipedia.org/wiki/Ant_colony_optimization_algorithms
https://ieeexplore.ieee.org/abstract/document/1226090