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Re^2: How to do popcount (aka Hamming weight) in Perl

by danaj (Friar)
on Sep 26, 2017 at 17:04 UTC ( [id://1200134]=note: print w/replies, xml ) Need Help??

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  1. or download this
    use Math::BigInt;
my $n = "16" x 1000;
say 0 + (Math::BigInt->new("$n")->as_bin() =~ tr/1//);

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