How does it do on 32/16?

Does it find all 601 million solutions? Does it come close to doing so in 5s?

Yes, it finds 601 million solutions, but very very far from 5 sec. 
$ time perl N_among_M.pl
601080390

real    35m14.046s
user    35m11.691s
sys     0m0.108s

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In reply to Re^3: Odometer pattern iterator (in C). (Updated.) by Laurent_R
in thread Odometer pattern iterator (in C). (Updated.) by BrowserUk

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