[bor100003]

I always check the topics on Bellard here on HN, really insightful.

Let's don't forget the obligatory: "Can he invert a binary tree on a whiteboard though?"

[bidirectional]

The funniest thing about the 'invert a binary tree' meme is that it genuinely is a simple, 5-liner problem that most programmers could solve in five minutes, it just sounds intimidating.

[chromanoid]

> Let's don't forget the obligatory: "Can he invert a binary tree on a whiteboard though?"

Probably yes.