capitrals _ unqualified

#include <string>
#include <iostream>
#include <vector>
#include <map>
using namespace std;

void DumpVector(const vector<string>& s){
	for (const auto& item:s){
		cout<<item <<endl;
	}
}
void DumpVectorOfMaps(const vector<map<char,int>>& s){
	for (const auto& item:s){
		for (const auto& c:item){
			cout<<c.first << " "<<c.second<<endl;
		}
		cout <<endl;
	}
}

void DumpMap(const map<char,int>& c){
	for (const auto& item:c){
		cout<<item.first << " "<<item.second<<endl;
	}
}

void DumpMapString(const map<string,string>& c){
	for (const auto& item:c){
		cout<<item.first << " "<<item.second<<" ";
	}
	cout<<endl;
}

string CountChars(const vector<string>& words){
	map<char,int> result;
	vector<map<char,int>> v_result;
	string tf="NO";

	for (const string& item:words){
		for (auto ch:item){
		result[ch]++;
	}
		v_result.push_back(result);
		result.clear();
	}

//	DumpVectorOfMaps(v_result);

	if (v_result[0]==v_result[1]){
			tf="YES";
		} else {
			tf="NO";
		}

	v_result.erase(v_result.begin(),v_result.end());
			return tf;
}

int main() {
	int i=0;
	cin>>i;
	string country, capital, new_capital, old_capital, old_country_name, new_country_name="";
	string operation;
	map<string,string> countries;
	map<string,int> capitals;

	while (i>0){

		cin>>operation;
		if (operation=="CHANGE_CAPITAL"){
			//CHANGE_CAPITAL
			cin>>country;
			cin>>new_capital;

			if (countries.count(country)==0){
			cout<<"Introduce new country "<< country <<" with capital "<< new_capital << endl;
			countries[country]= new_capital;
			}

			else if (countries[country]==new_capital){
			cout<<"Country "<< country <<" hasn't changed its capital" << endl;
			}

			else if (countries[country]!=new_capital && countries.count(country)!=0){
			cout<<"Country "<<country<<" has changed its capital from "<<countries[country]<<" to "<<new_capital<< endl;
			countries[country]=new_capital;
			}

		}
		if (operation=="RENAME"){
			//RENAME
			cin>>old_country_name;
			cin>>new_country_name;
			//DumpMapString(countries);

			if (countries.count(old_country_name)==0 || countries.count(new_country_name)!=0|| old_country_name==new_country_name){
				//check
				cout<<"Incorrect rename, skip"<< endl;
//				DumpMapString(countries);
			}

			if (countries.count(old_country_name)!=0 && old_country_name!=new_country_name)
			{
				cout<<"Country "<<old_country_name<<" with capital "<<countries[old_country_name]<<" has been renamed to "<<new_country_name<< endl;
				countries[new_country_name]=countries[old_country_name];
				countries.erase(old_country_name);
			}

		}

		if (operation=="ABOUT"){
			// ABOUT
			cin>>country;
			if(countries.count(country)==0){
			cout<<"Country "<<country<<" doesn't exist"<< endl;
			}
			else{
			cout<<"Country "<<country<<" has capital "<<countries[country]<< endl;
			}
		}
		if (operation=="DUMP"){
				//DUMP
				if(countries.empty()){
					cout<<"There are no countries in the world"<< endl;
				}
				else
				{
					for (const auto & item:countries){
						cout << item.first << "/" << item.second << " " ;
					}
					cout<<endl;
				}
				//DumpMapString(countries);
		}
		--i;
	}

	return 0;
}