#include <bits/stdc++.h> vector<vector<string>> getGroupedAnagrams(vector<string> &input, int n) { unordered_map<string,vector<string>>mp; vector<vector<string>>ans; for(int i=0 ; i<n ; i++) { string str=input[i]; string s=str; sort(s.begin(),s.end()); mp[s].push_back(str); } for(auto it:mp) { ans.push_back(it.second); } return ans; }
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