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Posted by Moby Dick
on 16/9/2009, 9:29 am, in reply to "consider this"
My model gives 414 as the optimum with a similar plan (appended below). My opinion is that an expression for {a,b,c,k} will not work in all cases.
*** Objective function ***
414
*** Crossings ***
Left bank: 1 2 100 101 102 103 104 105 106
Right bank:
Crossing 1: 1 102 103
Left bank: 2 100 101 104 105 106
Right bank: 1 102 103
Returns 1: 1
Left bank: 1 2 100 101 104 105 106
Right bank: 102 103
Crossing 2: 1 2 100
Left bank: 101 104 105 106
Right bank: 1 2 100 102 103
Returns 2: 1
Left bank: 1 101 104 105 106
Right bank: 2 100 102 103
Crossing 3: 104 105 106
Left bank: 1 101
Right bank: 2 100 102 103 104 105 106
Returns 3: 2
Left bank: 1 2 101
Right bank: 100 102 103 104 105 106
Crossing 4: 1 2 101
Left bank:
Right bank: 1 2 100 101 102 103 104 105 106
Model has been successfully processed
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