백준 25757 c++

조합할 필요 없이 단순 나누기 결과만 구하면 된다.

#include <iostream>
#include <set>
#include <vector>
#include <algorithm>

using namespace std;

void input_data(int* N, char* game, set<string>& name)
{
	int i;
	string str;

	cin >> *N >> *game;
	for (i = 0; i < *N; i++)
	{
		cin >> str;
		name.insert(str);
	}
	/*for (string str : name)
	{
		cout << str << "\n";
	}*/

	return;
}

void find_answer(char game, set<string> name)
{
	int answer;

	if (game == 'Y')
	{
		answer = name.size() / 1;
	}
	else if(game == 'F')
	{
		answer = name.size() / 2;
	}
	else
	{
		answer = name.size() / 3;
	}
	cout << answer << "\n";

	return;
}

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

	int N;
	char game;
	set<string> name;

	input_data(&N, &game, name);
	find_answer(game, name);

	return 0;
}