func_code_string: #include <bits/stdc++.h>   using namespace std;   const int INF = (int)2e9;   int main() {     int k, n, m, q;     cin >> k >> n >> m >> q;     map<string, map<string, int>> rec;     vector<string> art(n);     map<int, map<string, int>> b;     for (int(i) = (int)(0); (i) < (int)n; ++(i)) cin >> art[i];     sort(art.begin(), art.end());     string s;     getline(cin, s);     for (int(i) = (int)(0); (i) < (int)m; ++(i)) {       getline(cin, s);       int p = s.find( : );       string ar = s.substr(0, p);       s = s.substr(p + 2, s.size());       s +=  ,  ;       while (s !=   ) {         p = s.find(   );         string t = s.substr(0, p);         s = s.substr(p + 1, s.size());         p = s.find( , );         string t2 = s.substr(0, p);         s = s.substr(p + 2, s.size());         int col = atoi(t2.c_str());         rec[ar][t] = col;       }     }     for (int(i) = (int)(0); (i) < (int)q; ++(i)) {       int t;       cin >> t;       string st;       cin >> st;       b[t][st]++;       for (map<string, map<string, int>>::iterator it1 = rec.begin();            it1 != rec.end(); ++it1) {         bool ok = true;         for (map<string, int>::iterator it2 = it1->second.begin();              it2 != it1->second.end(); ++it2) {           if (b[t].find(it2->first) == b[t].end() ||               b[t][it2->first] < it2->second) {             ok = false;             break;           }         }         if (ok) {           for (map<string, int>::iterator it2 = it1->second.begin();                it2 != it1->second.end(); ++it2) {             b[t][it2->first] -= it2->second;             if (b[t][it2->first] == 0) b[t].erase(it2->first);           }           b[t][it1->first]++;           break;         }       }     }     for (int(i) = (int)(1); (i) < (int)k + 1; ++(i)) {       cout << b[i].size() <<   n ;       for (map<string, int>::iterator it = b[i].begin(); it != b[i].end(); ++it)         if (it->second) cout << it->first <<     << it->second <<   n ;     }     return 0;   }   