a$)$ Solve the same problem using $$route first cluster second$$ algorithm by using savings for

the routing part.

b$)$ Improve VRP solution obtained from saving algorithm for the routing part $($the tsp tour

which you obtained before spliting it$)$ by using two$-$opt algorithm.

c$)$ Additional to improvemnet in part b$,$ improve each route of VRP by applying two$-$opt.

d$)$ Discuss your finding and compare the results you obtained for question $1$ and $2.$

Note that the demand of the customers is not unit demand, but they are provided in the excel file as it described in question $1.$

Provide the answers and files for each part $($a$,$ b$,$ c$)$ separately.