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Implement `minByKey` given a key and list of `Map[String, Int]`; then implement `firstByKey` that generalizes this method and accepts a "direction" parameter. Lastly, implement a comparator and use it to re-implement `firstByKey`.
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Infrastructure Engineer

Interviewed at Stripe

3.7
Apr 8, 2019

Implement `minByKey` given a key and list of `Map[String, Int]`; then implement `firstByKey` that generalizes this method and accepts a "direction" parameter. Lastly, implement a comparator and use it to re-implement `firstByKey`.

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