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whatalnk/abc118-c.rb

Created April 18, 2019 11:13
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AtCoder ABC #118 C - Monsters Battle Royale
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abc118-c.rb
n = gets.chomp.to_i
a = gets.chomp.split(" ").map(&:to_i)
ret = a[0].gcd(a[1])
a.each do |x|
ret = ret.gcd(x)
end
puts ret
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