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Ingy döt Net 2015-02-20 09:02:09 -05:00
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Task/Stern-Brocot-sequence/Perl-6/stern-brocot-sequence.pl6 Normal file
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constant Stern-Brocot = flat
1, 1, -> *@a {
@a[$_ - 1] + @a[$_], @a[$_] given ++$;
} ... *;
say Stern-Brocot[^15];
for 1 .. 10, 100 -> $ix {
say "first occurrence of $ix is at index : ", 1 + Stern-Brocot.first-index($ix);
}
say so 1 == all map ^1000: { [gcd] Stern-Brocot[$_, $_ + 1] }