<prompt> Tumia algorithm ya kiini cha convex katika python - ikiwa ni seti ya pointi, rudi seti ya kiini cha convex.  <response>: Sure! Here is a Python implementation of the convex hull algorithm using the Grahams scan approach:import mathdef orientationp, q, r: Find orientation of ordered triplet p, q, r. Return: 0 if p, q, r are collinear 1 if clockwise 2 if counterclockwise val q1 - p1 r0 - q0 - q0 - p0 r1 - q1 if val 0: return 0 collinear elif val 0: return 1 clockwise else: return 2 counterclockwisedef convex_hullpoints: Find the convex hull of a set of points. Args: points: A list of tuples representing the points, e.g. 0,0, 1,1, 2,-1 Returns: A set of tuples representing the vertices of the convex hull in clockwise order Sort points by x-coordinates and then by y-coordinates points sortedsetpoints if lenpoints 1: return points else: Find lower hull lower_hull for point in points: while lenlower_hull 2 and orientationlower_hull-2, lower_hull-1, point 1: lower_hull.pop lower_hull.appendpoint Find upper hull upper_hull for point in reversedpoints: while lenupper_hull 2 and orientationupper_hull-2, upper_hull-1, point 1: upper_hull.pop upper_hull.appendpoint Combine lower and upper hulls and remove duplicates hull lower_hull:-1 upper_hull:-1 hull listsethull Sort vertices in clockwise order hull.sortkeylambda p: math.atan2p1-lower_hull01, p0-lower_hull00 return hullYou can use this function by calling convex_hullpoints where points is a list of tuples representing the points. It returns a set of tuples representing the vertices of the convex hull in clockwise order. 