def remove_elevation(self):
        for track_point in self.points:
            track_point.remove_elevation()
Recursive algorithm. Pre-order, in-order, post-order traversal relationship
dataset/ETHPy150Open tkrajina/gpxpy/gpxpy/gpx.py/GPXTrackSegment.remove_elevation--crossover with--dataset/ETHPy150Open algorhythms/LeetCode/105 Construct Binary Tree from Inorder and Postorder Traversal.py/Solution.buildTree