数据结构很有用(玩mc的时候,探索矿洞采取深度优先遍历,准备木半砖和火把,一路插火把,看见岔路放一个半砖,旁边一个火把表示来路方向,面前岔路从最左开始探索,发现岔路则继续,看见火把或死路返回,返回时发现半砖则寻找此处下一岔路,若已是最右侧岔路,则顺来路返回,看见半砖继续这一操作。 https://twitter.com/RoachNyaNya/status/1296086986982174721
https://t.me/private_channel_c14370a/4215
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