9f1b358c04
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1486 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
45 lines
1.2 KiB
Plaintext
45 lines
1.2 KiB
Plaintext
=================================================================
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Logtalk - Object oriented extension to Prolog
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Release 2.26.2
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Copyright (c) 1998-2005 Paulo Moura. All Rights Reserved.
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=================================================================
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% start by loading the example:
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| ?- logtalk_load(lo_travellers(loader)).
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...
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% build a route by adding one town at a time:
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| ?- incremental::route([london, brighton, portsmouth, exeter, oxford, aberystwyth], Route).
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Route = oxford-london-portsmouth-brighton-exeter-aberystwyth ?
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yes
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% presort towns by geographical distance before using the incremental algorithm:
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| ?- presort::route([london, brighton, portsmouth, exeter, oxford, aberystwyth], Route).
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Route = brighton-london-oxford-portsmouth-exeter-aberystwyth ?
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yes
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% come home after the journey:
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| ?- circular::route([london, brighton, portsmouth, exeter, oxford, aberystwyth], Route).
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Route = london-brighton-portsmouth-exeter-aberystwyth-oxford-london ?
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yes
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% blind search by generating permutations of the list of towns:
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| ?- permute::route([london, brighton, portsmouth, exeter, oxford, aberystwyth], Route).
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Route = (aberystwyth-exeter-portsmouth-brighton-london-oxford,273.6237583942784) ?
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yes
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