func_code_string: #include <bits/stdc++.h>   using namespace std;   void solve() {     int n = 0;     cin >> n;     string s;     vector<vector<int> > v(5, vector<int>(0));     for (int i = 0; i < n; i++) {       cin >> s;       vector<int> cnt(5, 0);       int sum = 0;       for (int j = 0; j < s.size(); j++) {         cnt[s[j] -  a ]++;         sum++;       }       for (int j = 0; j < 5; j++) {         v[j].push_back(cnt[j] - (sum - cnt[j]));       }     }     long long ans = -1;     for (int i = 0; i < 5; i++) {       sort(v[i].rbegin(), v[i].rend());       long long sum = 0;       long long cnt = 0;       for (int j = 0; j < v[i].size(); j++) {         sum += v[i][j];         if (sum > 0) {           cnt++;         }       }       ans = max(ans, cnt);     }     cout << ans << endl;   }   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     int t = 0;     cin >> t;     while (t--) {       solve();     }     return 0;   }   