5.3

# Continuation of 5.1's algorithm

points = [Point(4, 2), Point(7, -1), Point(3, -5), Point(-3, 6), 
          Point(-4, 4), Point(-1, -1), Point(-2, -6)]

hull = convexHull(points, len(points))

print("Convex Hull for given points:", hull)

# Graham’s Scan is O(n log n)