map, ввести название остановки, получить список автобусов

#include <iostream>
#include <string>
#include <map>
#include <vector>
 
using namespace std;
void addNewBus(map < string, vector < string >> & buses);
void printAllBuses(const map < string, vector < string >> & buses);
int main() {
  map<string, vector <string>> buses, stops;
  while (true) {
    string cmd    ;
    cout << "command:>";
    cin >> cmd;
    if (cmd == "done") break;
    if (cmd == "add") {
      addNewBus(buses);
      continue;
    }
    if (cmd == "print") {
      printAllBuses(buses);
      continue;
    }
    if (cmd == "stop") {
            printAllStops (stops);
            continue;
        }
  }
  return 0;
}
void addNewBus(map < string, vector < string >> & buses) {
  string bus;
  cout << "bus #: ";
  cin >> bus;
  int stop_count;
  cout << "count of stops: ";
  cin >> stop_count;
  vector < string > & listOfStops = buses[bus];
  listOfStops.resize(stop_count);
  cout << "stops:" << endl;
  for (string & stop: listOfStops) {
    cin >> stop;
  }
}
void printAllBuses(const map < string, vector < string >> & buses) {
  if (buses.empty()) {
    cout << "No buses" << endl;
  } else {
    for (const auto & bus_item: buses) {
      cout << "Bus " << bus_item.first << ": ";
      for (const string & stop: bus_item.second) {
        cout << stop << " ";
      }
      cout << endl;
    }
  }
}
 
void printAllStops(const map < string, vector < string >> & buses) {
string stop;
cin >> stop;
}

vector<string> &listOfBuses = stops[stop];
        for(auto& item:stops) {
            if (count(item.second.begin(), item.second.end(), bus) == 0) {
                item.second.push_back(bus);
            }
        }

void printAllStops(const map<string, vector<string>> &stops){
  string stop;
  cin >> stop;
    for (const auto &stop_item : stops) {
        if (stop_item.first == stop) {
            for (const string &buses : stop_item.second) {
                cout << buses << " ";
            }
        }
    }
}