In the mysterious and ancient Dragon Tribe, bonfires dance with orange-red flames, casting vivid reflections on the dragon totems carved into the surrounding rock walls, making them seem to come alive. Every hunter in the tribe is rubbing their fists in anticipation, their eyes sparkling with the light of competitiveness. They can no longer contain the restlessness in their hearts, all eager to prove themselves in this highly anticipated parkour contest and vie for the glorious title of "Parkour Master". The air is filled with a mix of tension and excitement, as the cheers of the tribe members interweave with the rhythm of drumbeats. A thrilling competition, one that is sure to ignite the passion of the entire tribe, is about to kick off!

To stand out in this contest, the key lies in precise operation — generating a ladder of exactly the right length based on the span and height of the terrain ahead. As long as the length of the ladder is perfect, able to stand firmly between the two ends of the obstacle, you can smoothly overcome the hurdles, successfully pass the level, and steadily move towards the ultimate victory.