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lsdr/palindromic_primes.rb

Created March 3, 2018 20:53
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Random code challenge scripts and stuff like that
Raw
palindromic_primes.rb
# Enter your code here. Read input from STDIN. Print output to STDOUT
require 'prime'
def ppn(n)
Prime.each(Float::INFINITY).lazy.select do |p|
p if p.to_s == p.to_s.reverse
end.first(n.to_i)
end
n = STDIN.read
STDOUT.write ppn(n)
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