不想多说啥了,直接上结论:

The goal of the game is to find an exit from the maze that looks like a perfect binary tree of height $h$.

迷宫是一个高度为h的完全二叉树

显然,perfect binary tree是完美二叉树(满二叉树)而不是完全二叉树,因此题意有误.

*另:完全二叉树也能做,但是貌似会复杂许多.