609

class Solution {
public:
    unordered_map<string, vector<string>> files;
    vector<vector<string>> ans;
    vector<vector<string>> findDuplicate(vector<string>& paths) {
        for(auto content: paths){
            stringstream ss(content);
            string root, file;
            getline(ss, root, ' ');

            while(getline(ss, file, ' ')){
                string path = root+"/"+file.substr(0, file.find('('));
                string content = file.substr(file.find('(')+1, file.find(')')-file.find('(')-1);
                files[content].push_back(path);
            }
        }
        for(auto file: files)
            if(file.second.size() > 1)
                ans.push_back(file.second);
        return ans;
    }
};