func_code_string: #include <bits/stdc++.h>   using namespace std;   int hashCh = 31;   struct HashCh {     string code;     int number;   };   long long getHash(string text) {     long long hash = 0;     int size = text.size();     for (int i = 0; i < size; i++) {       int ch = static_cast<int>(text[i]);       hash += pow(hashCh, i) * ch;     }     return hash;   }   int main() {     vector<string> password;     map<long long, HashCh> numbers;     char buf[80];     string oneNumber;     for (int i = 0; i < 80; i++) {       char ch;       cin >> ch;       oneNumber += ch;       if ((i % 10) == 9) {         password.push_back(oneNumber);         oneNumber =   ;       }     }     for (int i = 0; i < 10; i++) {       string number;       cin >> number;       HashCh ch = HashCh();       ch.code = number;       ch.number = i;       long long hash = getHash(number);       numbers[hash] = ch;     }     vector<int> result;     for (int i = 0; i < 8; i++) {       auto it = numbers.find(getHash(password[i]));       if (it != numbers.end() && it->second.code == password[i]) {         result.push_back(it->second.number);       }     }     for (auto i = result.begin(); i != result.end(); i++) {       cout << *i;     }     return 0;   }   