消灭星星的数组高效率算法（c++代码，控制台程序）

#include <iostream>
using namespace std;

#define ROW 12
#define COL  10

class Star
{
public:
	enum Stat_star
	{
		willRemoved = -2,
		hasRemoved,
		normal
	};

	Star()
	{
		for (unsigned i = 0; i < ROW; i++)
		{
			for (unsigned j = 0; j < COL; j++)
			{
				m_arr[i][j].state = normal;
				m_arr[i][j].visited = false;
			}
		}
	}
	~Star(){}

	void print()
	{
		cout << "=====================" << endl;
		for (unsigned i = 0; i < ROW; i++)
		{
			for (unsigned j = 0; j < COL; j++)
			{cout << m_arr[i][j].data << "(" << m_arr[i][j].state << ")" << "\t";}
			cout << endl;
		}
	}

	void resetVisited()
	{
		for (unsigned i = 0; i < ROW; i++)
		{
			for (unsigned j = 0; j < COL; j++)
			{
				if(m_arr[i][j].state != hasRemoved)
				{m_arr[i][j].visited = false;}
			}
		}
	}

	//检測是否游戏结束
	bool checkGameOver()
	{
		for (unsigned i = 0; i < ROW; i++)
		{
			for (unsigned j = 0; j < COL; j++)
			{
				if(findWillRemove(i, j) > 1)
				{return false;}
			}
		}

		return true;
	}

	//检測是否要整列移动
	void checkColMove()
	{
		int dt = 0;	//列的增量
		for (int i = 0; i < COL - dt; i++)
		{
			bool allRemoved = true;
			//检測某列是否整列为空
			for (int j = 0; j < ROW; j++)
			{
				if(m_arr[j][i].state != hasRemoved)
				{
					allRemoved = false;
					break;
				}
			}

			//開始移动列
			if(allRemoved)
			{
				for (int x = i; x < COL; x++)
				{
					for (int y = 0; y < ROW; y++)
					{
						if(x + 1 < COL)
						{
							Star_data tempStar = m_arr[y][x];
							m_arr[y][x] = m_arr[y][x + 1];
						}
					}
				}
				//最后一列置空
				for (int y = 0; y < ROW; y++)
				{m_arr[y][COL - 1].state = hasRemoved;}
				i--;
				dt++;
			}
		}
	}

	//找到同样的球后。删除同样的球
	void removeSameStar()
	{
		//以列来找
		for (int j = 0; j < COL; j++)
		{
			for (int i = ROW - 1; i >= 0; i--)
			{
				if(m_arr[i][j].state == willRemoved)
				{
					Star_data tempStar = m_arr[i][j];
					//依次把星星下移。而且把空的星星放到最上面
					for (int x = i; x >= 0; x--)
					{
						if(x - 1 >= 0)
						{m_arr[x][j] = m_arr[x - 1][j];}
					}
					m_arr[0][j] = tempStar;
					m_arr[0][j].state = hasRemoved;
					i++;
				}
			}
		}
	}
//点击某个星星。找到将要被移除的星星
	int findWillRemove(int i, int j)
	{
		int findCount = 0;
		findWillRemove(i, j, findCount);
		resetVisited();
		return findCount;
	}
	//查找将要被移除的
	void findWillRemove(int i, int j,  int &findCount)
	{
		if(i >= ROW || i < 0 || j >= COL || j < 0 || m_arr[i][j].state == hasRemoved || m_arr[i][j].visited)
		{return;}

		m_arr[i][j].visited = true;
		findCount++;

		//左
		if(i - 1 >= 0 && m_arr[i - 1][j].state != hasRemoved && m_arr[i - 1][j].data == m_arr[i][j].data)
		{
			m_arr[i][j].state = willRemoved;
			m_arr[i - 1][j].state = willRemoved;
			findWillRemove(i - 1, j, findCount);
		}
		//右
		if(i + 1 < ROW && m_arr[i + 1][j].state != hasRemoved && m_arr[i + 1][j].data == m_arr[i][j].data)
		{
			m_arr[i][j].state = willRemoved;
			m_arr[i + 1][j].state = willRemoved;
			findWillRemove(i + 1, j, findCount);
		}
		//上
		if(j + 1 < COL && m_arr[i][j + 1].state != hasRemoved && m_arr[i][j + 1].data == m_arr[i][j].data)
		{
			m_arr[i][j].state = willRemoved;
			m_arr[i][j + 1].state = willRemoved;
			findWillRemove(i, j + 1, findCount);
		}
		//下
		if(j - 1 >= 0 && m_arr[i][j - 1].state != hasRemoved && m_arr[i][j - 1].data == m_arr[i][j].data)
		{
			m_arr[i][j].state = willRemoved;
			m_arr[i][j - 1].state = willRemoved;
			findWillRemove(i, j - 1, findCount);
		}
	}

	struct Star_data
	{
		int data;	//数据
		Stat_star state;	//状态
		bool visited;	//是否訪问
	};
	Star_data m_arr[ROW][COL];
};

int main()
{
	Star star;
	int arr[ROW][COL] =
	{
		2, 1, 3, 2, 1, 2, 1, 3, 2, 1,
		2, 2, 5, 1, 2 ,2, 2, 5, 1, 2,
		3, 2, 1, 3, 3, 3, 2, 1, 3, 3,
		2, 5, 4, 1, 4, 2, 5, 4, 1, 4,
		2, 2, 3, 2, 5,	2, 2, 3, 2, 5,
		2, 1, 3, 2, 1, 2, 1, 3, 2, 1,
		2, 2, 5, 1, 2 ,2, 2, 5, 1, 2,
		3, 2, 1, 3, 3, 3, 2, 1, 3, 3,
		2, 5, 4, 1, 4, 2, 5, 4, 1, 4,
		2, 2, 3, 2, 5,	2, 2, 3, 2, 5,
		2, 5, 4, 1, 4, 2, 5, 4, 1, 4,
		2, 2, 3, 2, 5,	2, 2, 3, 2, 5
	};

	for (unsigned i = 0; i < ROW; i++)
	{
		for (unsigned j = 0; j < COL; j++)
		{star.m_arr[i][j].data = arr[i][j];}
	}

	star.print();

	star.findWillRemove(0, 0);

	star.removeSameStar();

	star.checkColMove();
	star.print();

	star.checkGameOver() ?

cout <<"over" : cout <<"not over";
	system("pause");
	return 0;
}