19 lines
319 B
Ruby
19 lines
319 B
Ruby
# @param {String[]} strs
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# @return {String}
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def longest_common_prefix(strs)
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min_length = strs.map(&:length).min
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res = ''
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(0...min_length).each do |i|
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# Compare characters
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strs.each do |st|
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return res if st[i] != strs[0][i]
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end
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# All characters match
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res += strs[0][i]
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end
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res
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end
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