func_code_string: #include <bits/stdc++.h>   using namespace std;   using ll = long long;   using ld = long double;   template <typename T>   vector<T>& operator--(vector<T>& v) {     for (auto& i : v) --i;     return v;   }   template <typename T>   vector<T>& operator++(vector<T>& v) {     for (auto& i : v) ++i;     return v;   }   template <typename T>   istream& operator>>(istream& is, vector<T>& v) {     for (auto& i : v) is >> i;     return is;   }   template <typename T>   ostream& operator<<(ostream& os, vector<T> v) {     for (auto& i : v) os << i <<    ;     return os;   }   template <typename T, typename U>   pair<T, U>& operator--(pair<T, U>& p) {     --p.first;     --p.second;     return p;   }   template <typename T, typename U>   pair<T, U>& operator++(pair<T, U>& p) {     ++p.first;     ++p.second;     return p;   }   template <typename T, typename U>   istream& operator>>(istream& is, pair<T, U>& p) {     is >> p.first >> p.second;     return is;   }   template <typename T, typename U>   ostream& operator<<(ostream& os, pair<T, U> p) {     os << p.first <<     << p.second;     return os;   }   template <typename T, typename U>   pair<T, U> operator-(pair<T, U> a, pair<T, U> b) {     return make_pair(a.first - b.first, a.second - b.second);   }   template <typename T, typename U>   pair<T, U> operator+(pair<T, U> a, pair<T, U> b) {     return make_pair(a.first + b.first, a.second + b.second);   }   template <typename T, typename U>   void umin(T& a, U b) {     if (a > b) a = b;   }   template <typename T, typename U>   void umax(T& a, U b) {     if (a < b) a = b;   }   struct Node {     bool end = false;     map<char, Node*> to;   };   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     int n;     cin >> n;     vector<string> res(n);     cin >> res;     set<string> ress(res.begin(), res.end());     Node* root = new Node();     for (string s : res) {       auto node = root;       for (char c : s) {         if (!node->to.count(c)) node->to[c] = new Node();         node = node->to[c];       }       node->end = true;     }     int m;     cin >> m;     vector<string> tokens0;     {       string s;       getline(cin, s);       for (int it = 0; it < m; ++it) {         getline(cin, s);         for (int i = 0; i < s.size(); ++i) {           if (s[i] ==  # ) {             s.resize(i);             break;           }         }         int last = 0;         for (int i = 0; i <= s.size(); ++i) {           if (i == s.size() || s[i] ==    ) {             if (last != i) {               tokens0.push_back(s.substr(last, i - last));             }             last = i + 1;           }         }       }     }     void(0);     vector<pair<string, int>> tokens;     auto is_let = [&](char c) {       if ( a  <= c && c <=  z ) return true;       if ( A  <= c && c <=  Z ) return true;       if ( 0  <= c && c <=  9 ) return true;       if (c ==  $ ) return true;       if (c ==  _ ) return true;       return false;     };     auto parse_tokens = [&](string s) {       vector<pair<string, int>> tokens;       int ind = 0;       while (ind < s.size()) {         int was = ind;         auto node = root;         int best_sz = 0;         for (int i = ind; i < s.size(); ++i) {           char c = s[i];           if (!node->to.count(c)) break;           node = node->to[c];           if (node->end) best_sz = i + 1 - ind;         }         string best_res = s.substr(ind, best_sz);         void(0);         if ( 0  <= s[ind] && s[ind] <=  9 ) {           int it = ind;           while (it < s.size() && s[it] >=  0  && s[it] <=  9 ) ++it;           void(0);           if (it - ind > best_res.size()) {             tokens.emplace_back(s.substr(ind, it - ind), 1);             ind = it;           } else {             tokens.emplace_back(best_res, 0);             ind += best_res.size();           }         } else {           int it = ind;           while (it < s.size() && is_let(s[it])) ++it;           void(0);           if (it - ind > best_res.size()) {             tokens.emplace_back(s.substr(ind, it - ind), 2);             ind = it;           } else {             tokens.emplace_back(best_res, 0);             ind += best_res.size();           }         }         if (ind <= was) {           return make_pair(tokens, false);         }       }       return make_pair(tokens, true);     };     for (auto s : tokens0) {       auto v = parse_tokens(s).first;       for (auto p : v) tokens.push_back(p);     }     set<pair<int, string>> avail_names;     for (int ln = 1; ln <= 3; ++ln) {       int cnt = 1;       for (int i = 0; i < ln; ++i) {         cnt *= 26;       }       for (int i = 0; i < cnt; ++i) {         string t;         int x = i;         for (int j = 0; j < ln; ++j) {           t.push_back( a  + x % 26);           x /= 26;         }         if (ress.count(t)) continue;         avail_names.emplace(ln, t);       }     }     map<string, string> names;     for (auto& [s, tp] : tokens) {       if (tp != 2) continue;       if (!names.count(s)) {         names[s] = avail_names.begin()->second;         avail_names.erase(avail_names.begin());       }       s = names[s];     }     void(0);     string curs;     for (int i = 0; i < tokens.size(); ++i) {       cout << tokens[i].first;       curs += tokens[i].first;       if (i + 1 < tokens.size()) {         auto v1 = parse_tokens(curs).first;         auto v2 = parse_tokens(tokens[i + 1].first).first;         for (auto v : v2) v1.push_back(v);         auto [v3, res] = parse_tokens(curs + tokens[i + 1].first);         if (!res || v1 != v3) {           cout <<    ;           curs.clear();         }       }     }     cout <<   n ;     return 0;   }   