Untitled

def has_won(board, column):
  
    directions = [(0, 1), (1, 0), (1, 1), (1, -1)]

    def in_bound(row, col):
        return 0 <= row < len(board) and 0 <= col < len(board[0])

    def check_win(direction, r, c, symbol):
        count = 1  
        dr, dc = direction  

        r_pos, c_pos = r + dr, c + dc
        while in_bound(r_pos, c_pos) and board[r_pos][c_pos] == symbol:
            count += 1
            r_pos, c_pos = r_pos + dr, c_pos + dc

        r_neg, c_neg = r - dr, c - dc
        while in_bound(r_neg, c_neg) and board[r_neg][c_neg] == symbol:
            count += 1
            r_neg, c_neg = r_neg - dr, c_neg - dc

        return count >= 4

    row_top = 0
    while row_top < len(board) and board[row_top][column] == '.':
        row_top += 1
    row_top -= 1  

    if row_top < 0:
        return False

    for direction in directions:
        if check_win(direction, row_top, column, board[row_top][column]):
            return True

    return False