14. Longest Common Prefix

    xiaoxiao2021-04-18  66

    解题思路:这道题目的意思是说判断一系列字符串当中最长的前缀,在解题时只要逐一字符判断即可得到最长的相同前缀。

    class Solution { public: string longestCommonPrefix(vector<string>& strs) { int n = strs.size(); string res; if(n == 0)return res; for(int pos = 0; pos < strs[0].size(); pos++) { for(int k = 1; k < n; k++) { if(strs[k].size() == pos || strs[k][pos] != strs[0][pos]) return res; } res.push_back(strs[0][pos]); } return res; } };

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