Inverse FizzBuzz in Ruby - Qiita# Inverse FizzBuzz def fizzbuzz(n) x = "" x << "Fizz" if n%3 == 0 x << "Buzz" if n%5 == 0 x.empty? ? n : x end def map_upto(max, f) (1..max).map { |n| f[n] } end def be_short(item) case item when 'Fizz', 'Buzz'; item.chr when Integer; 0 else 'z' end end def fizzbuzz_string(max) map_upto(max, method(:fizzbuzz)).map { |item| be_short item }.join end def find_seq(*sequence) short_seq = sequence.map {
