LeetCode - Longest Common Prefix
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Write a function to find the longest common prefix string amongst an array of strings.
class Solution {public: string longestCommonPrefix(vector<string> &strs) {string s; if(strs.empty()){return s;}int index=strs[0].size();for(int i=1;i<strs.size();i++){for(int j=0;j<index;j++){if(strs[i][j]!=strs[0][j]){index=j;break;}}}s.assign(strs[0].begin(),strs[0].begin()+index);return s; }};
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