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lexruee/find_missing_letter.rb

Last active March 19, 2020 18:26
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Find the missing letter in the passed letter range and return it.
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find_missing_letter.rb
def find_missing_letter(range)
chars = range.chars
max_char = chars.max
min_char = chars.min
missing_chars = (min_char..max_char).to_a - chars
missing_chars.first
end
p find_missing_letter "abde"
p find_missing_letter "abcdefgijk"
p find_missing_letter "abcdef"
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