leetcode 14. Longest Common Prefix
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给n个字符串，求最长公公前缀。直接逐位扫判断就行。
class Solution(object): def longestCommonPrefix(self, strs): """ :type strs: List[str] :rtype: str """ lenS = len(strs) if lenS == 0: return '' if lenS == 1: return strs[0] minLen = 2<<29 for i in range(lenS): minLen = min(len(strs[i]),minLen) ans = 0 for i in range(minLen): for j in range(1,lenS): if strs[j][i] <> strs[j-1][i]: ans = i print ans return strs[0][0:ans] return strs[0][0:minLen]
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