input: Write a python function to check if two rectangles overlap and compute their overlapping area.
  assert check_overlap(((2, 6), (4, 2)), ((3, 5), (6, 3))) == 2
  assert check_overlap(((0, 0), (1, 1)), ((1, 1), (2, 2))) == 0
  assert check_overlap(((1, 1), (4, 4)), ((2, 2), (3, 3))) == 1
output: def check_overlap(rect1, rect2):
      (x1_left, y1_top), (x1_right, y1_bottom) = rect1
      (x2_left, y2_top), (x2_right, y2_bottom) = rect2
  
      # Calculate the (x, y) overlap intervals
      x_overlap = max(0, min(x1_right, x2_right) - max(x1_left, x2_left))
      y_overlap = max(0, min(y1_top, y2_top) - max(y1_bottom, y2_bottom))
  
      # Compute the area of overlap
      overlap_area = x_overlap * y_overlap
  
      return overlap_area