I was asked this in an interview. I was a bit pissed | Hacker News

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		make3 on Oct 17, 2018 \| parent \| context \| favorite \| on: Ask HN: What's your favorite elegant/beautiful alg... I was asked this in an interview. I was a bit pissed

bhl on Oct 17, 2018 [–]

Doesn't sound too bad; a basic property of XOR is that two of them cancel out, so y ⊕ x ⊕ x is just y.

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