FB面经 Prepare: LCA of Deepest Nodes in Binary Tree
Recursion: 返回的时候返回lca和depth，每个node如果有大于一个子节点的depth相同就返回这个node，如果有一个子节点depth更深就返回个子节点lca，这个 ...
原文：FB面经 Prepare: K closest point to the origin
Based on bucket sort: Based on Quick Select 当然，还有的方法是维护一个size为k的最大堆 ...
2017-03-14 09:58 0 1748 推荐指数：
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