RosettaCodeData/Task/Fortunate-numbers/Jq/fortunate-numbers.jq
2023-07-01 13:44:08 -04:00

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Text

def primes:
2, range(3; infinite; 2) | select(is_prime);
# generate an infinite stream of primorials
def primorials:
foreach primes as $p (1; .*$p; .);
# Emit a sorted array of the first $limit distinct fortunate numbers
# generated in order of the primoridials
def fortunates($limit):
label $out
| foreach primorials as $p ([];
first( range(3; infinite; 2) | select($p + . | is_prime)) as $q
| . + [$q] | unique;
if length >= $limit then ., break $out else empty end);
fortunates(10)