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whatalnk/abc122-b.rb

Created April 17, 2019 11:07
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AtCoder ABC #122 B - ATCoder
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abc122-b.rb
s = gets.chomp
n = s.length
base = ["A", "G", "C", "T"]
ans = 0
cur = 0
n.times do |i|
if base.include?(s[i])
cur += 1
else
ans = [ans, cur].max
cur = 0
end
end
ans = [ans, cur].max
puts ans
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