This is awesome and I enjoyed playing a couple rounds! I don't have any feedback that hasn't been shared already.

Coming soon to a coding interview near you!

Probably solvable with hashmap then. Something make hash bucket-sum dependent and split/resize until it's done.

My thoughts exactly.

It would 100% fit in with the interviews I've had in the past year.

Geez. I mean, I could do this, but probably not in a 45 minute interview without knowing how to solve the problem ahead of time.

leetcode hard++