11 lines
278 B
Ruby
11 lines
278 B
Ruby
def encode(string)
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string.scan(/(.)(\1*)/).inject("") do |encoding, (char, repeat)|
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encoding << (1 + repeat.length).to_s << char
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end
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end
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def decode(string)
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string.scan(/(\d+)(\D)/).inject("") do |decoding, (length, char)|
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decoding << char * length.to_i
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end
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end
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