func_code_string: #include <bits/stdc++.h>   using namespace std;   void solve() {     string s;     cin >> s;     vector<long long> cnt(26);     long long posl = 1e9, posr = 0;     for (auto c : s) {       cnt[c -  a ]++;       posl = min(posl, (long long)(c -  a ));       posr = max(posr, (long long)(c -  a ));     }     for (long long i = posl; i <= posr; i++) {       if (cnt[i] != 1) {         cout <<  No n ;         return;       }     }     cout <<  Yes n ;   }   signed main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     cout << fixed;     cout.precision(30);     long long t = 1;     cin >> t;     while (t--) solve();   }   