#16638: Random failure in integer_vector
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Reporter: vbraun | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.4
Component: combinatorics | Resolution:
Keywords: random_fail | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by chapoton):
There must be a bug in the ryser algo:
{{{
sage: d = ([3, 3, 3, 1, 1],[4, 4, 1, 1, 1])
sage: from sage.combinat.integer_vector import *
sage: gale_ryser_theorem(*d, algorithm='ryser')
[0 0 1 1 1]
[1 1 1 0 0]
[1 1 1 0 0]
[1 0 0 0 0]
[1 0 0 0 0]
sage: gale_ryser_theorem(*d, algorithm='gale')
[1 1 0 1 0]
[1 1 0 0 1]
[1 1 1 0 0]
[1 0 0 0 0]
[0 1 0 0 0]
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/16638#comment:5>
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