[백준] 📂. (2630번) 색종이 만들기

🗒️ 2630번) 색종이 만들기

#include <iostream>
using namespace std;

int board[128][128];
int c_white(0), c_blue(0);

void Func(int n, int base_r, int base_c)
{
	if (n == 0)
		return;
	
	bool isSame = true;
	int color = board[base_r][base_c];
	for (int r = base_r; r < base_r + n && isSame; r++)
	{ 
		for (int c = base_c; c < base_c + n; c++)
		{
			if (color != board[r][c])
			{
				isSame = false;
				break;
			}
		}
	}

	if (isSame)
	{
		if (color)  // 파란색
			++c_blue;
		else        // 하얀색
			++c_white;
	}
	else
	{
		int new_n = n / 2;
		for (int i = 0; i < 4; i++)
		{
			int new_r = base_r + new_n * (i / 2);
			int new_c = base_c + new_n * (i % 2);

			Func(new_n, new_r, new_c);
		}
	}

}

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

	int N;
	cin >> N;
	for (int i = 0; i < N; i++)
		for (int j = 0; j < N; j++)
			cin >> board[i][j];

	Func(N, 0, 0);

	cout << c_white << '\n' << c_blue;
	return 0;
}