5 queens

[cf29]

On Dec 23, 2:04 pm, Steven D'Aprano <st... at REMOVE-THIS-
cybersource.com.au> wrote:
> def combinations(seq, n):
>     if n == 0:
>         yield []
>     else:
>         for i in xrange(len(seq)):
>             for cc in combinations(seq[i+1:], n-1):
>                 yield [seq[i]]+cc
>
> >>> for c in combinations(range(4), 3):
>
> ...     print c
> Steven

Thank you Steven, it works. I am so new to Python that I don't
understand fully how this function works to be able to adapt it to my
original problem. I wish I had a teacher :-)

Merry Xmas