Title Text:A death-first search is when you lose your keys and travel to the depths of hell to find them, and then if they’re not there you start checking your coat pockets. Origin:https://xkcd.com/2407/ https://www.explainxkcd.com/wiki/index.php/2407:_Depth_and_Breadth 深度与广度 死亡优先搜索指的是你丢了钥匙的时候，先跑到地狱最深处去找，要是钥匙不在那儿，你再摸摸大衣口袋。 http://xkcd.in/comic?lg=cn&id=2407 树结构是计算机科学中最常用的数据结… Read more