...problem.
The travelling salesman problem is to find the shortest route which starts at a certain point, visits a given set of destinations (customers), and returns to the starting point at the end.
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...logic
technically called Horn clauses
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...weightings.
The intervals returned from ria are much narrower than this, but for this paper I have reduced the output to three significant figures.
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...number.
Using the Simplex or Dual Simplex algorithms this cost goes up, in the worst case, exponentially with the number of constraints and variables.
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...search.
Technically they are rarely facet-inducing cuts.
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...goal.
The variable M denotes the module in which writeln is defined.
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...library.
The fd library automatically loads the suspend library, so it is not actually necessary to load suspend explicitly.
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Joachim Schimpf
Wed Sep 3 18:07:19 BST 1997