백준 17219 c++

#include <iostream>
#include <algorithm>
#include <map>
#include <string>

using namespace std;

map <string, string> info;

void input_info(int N)
{
	int i;
	string address, password;

	for (i = 0; i < N; i++)
	{
		cin >> address >> password;
		info[address] = password;
	}

	return;
}

void find_password(int M)
{
	int i;
	string address;

	for (i = 0; i < M; i++)
	{
		cin >> address;
		cout << info[address] << "\n";
	}

	return;
}

int main(void)
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);

	int N, M;
	
	cin >> N >> M;
	input_info(N);
	find_password(M);

	return 0;
}