SHUFFLE_STRING.cpp

class Solution {
public:
    string restoreString(string s, vector<int>& indices) {
        int n=s.size();
        vector<char>arr(n);
        for(int i=0;i<n;i++)
            arr[indices[i]]=s[i];
        
        string ans="";
        for(char c:arr)
            ans+=c;
        
        return ans;
    }
};