井子棋

题目：

class Board {
public:
    bool checkWon(vector<vector<int> > board) {
        // write code here
        int rows = board.size();
        int cols = board[0].size();
        
        
        // 行
        for(int i = 0; i<rows; i++)
        {
            int sum = 0;
            for(int j = 0; j<cols; j++)
            {
                sum += board[i][j];
            }
            if(sum == 3)
                return true;
        }
        
        
        // 列
        for(int i = 0; i<cols; i++)
        {
            int sum = 0;
            for(int j = 0; j<rows; j++)
            {
                sum += board[i][j];
            }
            if(sum == 3)
                return true;
        }
        
        // 对角
        if(board[0][0] + board[1][1] + board[2][2] == 3 || board[0][2] + board[1][1] + board[2][0] == 3)
            return true;
        
        return false;
        
    }
};