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#!/usr/bin/env ruby
require 'trollop'
def usage
STDERR.write "./sample --size <n> --population <n>\n"
exit 1
end
usage if ARGV.size!=4
opts = Trollop::options do
opt :size, "Sample size (percentage).", :type => :int
opt :population, "'Population' (number \in N)", :type => :int
end
prng = Random.new(Random.new_seed)
1.upto(opts[:population]) { |i|
puts i if prng.rand(1..opts[:size])==0
}
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