func_code_string: #include <bits/stdc++.h>   using namespace std;   void solve() {     string s;     cin >> s;     long long int n = s.size();     map<char, long long int> r;     for (long long int i = 0; i < n; i++) {       r[s[i]]++;     }     long long int k = 0, cnt = 0;     for (auto it = r.begin(); it != r.end(); it++) {       if (it->second >= 2)         k++;       else if (it->second == 1)         cnt++;     }     cout << k + cnt / 2 <<   n ;     return;   }   signed main() {     ios::sync_with_stdio(0);     cin.tie(0);     long long int t = 1;     cin >> t;     for (long long int i = 1; i < t + 1; i++) {       solve();     }     return 0;   }   