Graph colouring: Difference between revisions

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=={{header|Phix}}==
=={{header|Phix}}==
Exhaustive search, trims search space to < best so far, newused improves on unique().<br>
Exhaustive search, trims search space to < best so far, newused improves on unique().<br>
Many more examples/testing would be needed before I would trust this the tiniest bit.
Many more examples/testing would be needed before I would trust this the tiniest bit.<br>
NB: As per talk page, when writing this I did not remotely imagine it might be used on over 400,000 nodes with over 3 million links...
<lang Phix>-- demo\rosetta\Graph_colouring.exw
<lang Phix>-- demo\rosetta\Graph_colouring.exw
constant tests = split("""
constant tests = split("""