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whatalnk/abc123-a.rb

Created April 6, 2019 14:07
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AtCoder ABC #123 A - Five Antennas
Raw
abc123-a.rb
pos = []
5.times do
pos << gets.chomp.to_i
end
k = gets.chomp.to_i
pos.combination(2) do |a, b|
if (a - b).abs > k
puts ":("
exit
end
end
puts "Yay!"
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