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What mistake have you learned most from?
5y, 2w
14 replies ¬
🌊 Zero Two
this feels like an interview question lol
5y, 2w
8 replies
Ice
given 2 nodes on a binary tree, return the lowest common ancestor in O(N) time
5y, 2w
5 replies
🌊 Zero Two
take one node, go up to root, take the other node go up to root or until u hit one u already seen.
5y, 2w
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Ice
true, but only if child nodes have references to parent nodes. otherwise you'd need a top-down recursive approach where you return if the current node is the one of the child nodes in the callback
5y, 2w
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you're hired!
5y, 2w
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