Member Avatar for xushi

Hi,

I'm supposed to write a code of finding the shortest path of VRP...
Assume that shortest path = shortest time.

"Given a set of locations and a set of homogenous vehicles, find the minimum time of tour that visits each city exactly once by any of the given vehicle. Write a sequential program to solve the simplified vehicle routing problem (VRP)"

Assume the set of location is 9 and set of vehicles is 3.

BTW, I'm supposed to read the data from a file that gives the cities coordination.

I know that I have to do the permutation to find the possibilities.

Please let me know if some more information is needed.

Thanks a lot.

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Member Avatar for versan

There are algorithms for vrp.. have you gone through it??

Member Avatar for xushi

There are algorithms for vrp.. have you gone through it??

yea...but they are different from the requirements...
normally there is given 1 vehicle and travel all the possible...
but the requirements states that multiple vehicles, e.g 3...
I have tried permutation to find all the possibilities...
but I wonder how to spilt the possibilities into 3 vehicles...

the scenario is something like this ...
vehicle 1 - city 0, 1 , 2, 3, 0
vehicle 2 - city 0, 4 , 5, 6, 0
vehicle 3 - city 0, 7 , 8, 9 ,0

Member Avatar for versan

can u please elaborate the problem for me?? i feel it difficult to understand!!!

Member Avatar for xushi

can u please elaborate the problem for me?? i feel it difficult to understand!!!

The question is like this:

Given a set of locations [e.g. 9] and a set of homogenous vehicles [e.g. 3], find the minimum time of tour that visits each city exactly once by any of the given vehicle. Write a sequential program to solve the simplified vehicle routing problem (VRP).

Compute the minimum travel time for all the vehicles to complete the tour of all the cities.

Did u get it?

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