leetcode: 14. Longest Common Prefix
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Problem
# Write a function to find the longest common prefix string amongst an array of strings.AC
class Solution(): def longestCommonPrefix(self, x): if not x: return "" prefix, i = x[0], 1 while len(prefix) > 0: while i < len(x) and x[i][:len(prefix)] == prefix: i += 1 if i == len(x): return prefix prefix = prefix[:-1] return ""if __name__ == "__main__": assert Solution().longestCommonPrefix(["China", "Chinese", "Chipotle"]) == 'Chi' assert Solution().longestCommonPrefix(["China", "", "Chipotle"]) == ''阅读全文
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