Current File : //proc/self/root/proc/thread-self/root/lib64/python2.7/Demo/scripts/queens.pyc
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A fc @ sB d Z d Z d d d � � YZ d � Z e d k r> e � n d S( s� N queens problem.
The (well-known) problem is due to Niklaus Wirth.
This solution is inspired by Dijkstra (Structured Programming). It is
a classic recursive backtracking approach.
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