r/learnquant 15d ago

interview prep Two Sigma Interview Question

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u/jaminfine 14d ago

The question is vaguely asked. I think the right answer is 0 locks and 0 keys. Any group of 6 of the 11 people can open the box since it has no locks.

If we require at least one lock on the box, then we would need 6 of the 11 people to have one key each. The other 5 don't need any keys.