Created
December 20, 2015 05:55
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AtCoder ARC #003
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n = gets.chomp.to_f | |
grades = gets.chomp.split("") | |
gpa = 0 | |
grades.each do |g| | |
case g | |
when "A" | |
gpa += 4 | |
when "B" | |
gpa += 3 | |
when "C" | |
gpa += 2 | |
when "D" | |
gpa += 1 | |
end | |
end | |
puts gpa / n |
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# [B: さかさま辞書 - AtCoder Regular Contest 003 | AtCoder](http://arc003.contest.atcoder.jp/tasks/arc003_2) | |
n = gets.chomp.to_i | |
words = [] | |
n.times do | |
words << gets.chomp.reverse | |
end | |
words.sort.each do |w| | |
puts w.reverse | |
end |
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