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I was just wondering if all algorithms for the TSP will give the same optimum routes? I thought that this would be the case but ive implemented branch and bound and A* and they both give very different results to the same input, I was just wondering if this is normal?
The route my differ, but the cost of all optimal solution should be the same.
If your A* solution is more expensive, than your heuristic is wrong.
Have a look at wikipedia A* algorithm for proofs that it always finds an optimal solution.