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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Combinations/Raku/combinations-1.raku Normal file
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.say for combinations(5,3);

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Task/Combinations/Raku/combinations-2.raku Normal file
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sub combinations(Int $n, Int $k) {
return ([],) unless $k;
return if $k > $n || $n <= 0;
my @c = ^$k;
gather loop {
take [@c];
next if @c[$k-1]++ < $n-1;
my $i = $k-2;
$i-- while $i >= 0 && @c[$i] >= $n-($k-$i);
last if $i < 0;
@c[$i]++;
while ++$i < $k { @c[$i] = @c[$i-1] + 1; }
}
}
.say for combinations(5,3);