[C/C++] 백준 14425번 문자열 집합

 

 

 

 

 

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코드

#include <iostream>
#include <map>

int main()
{
	std::ios_base::sync_with_stdio(false);
	std::cin.tie(nullptr);

	std::map<std::string, bool> stringmap;

	int n, m;
	int count = 0;
	std::cin >> n>>m;

	for (int i = 0; i < n; i++)
	{
		std::string inputstr;

		std::cin >> inputstr;

		stringmap[inputstr] = true;
	}

	for (int i = 0; i < m; i++)
	{
		std::string inputstr;

		std::cin >> inputstr;

		if (true == stringmap[inputstr])
		{
			count++;
		}
	}

	std::cout << count;
	
	stringmap.clear();
}