Alaina Kafkes
1 min readAug 3, 2017

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Fair point! What I mean to say is that there’s a lengthy calculation behind each sub-problem that determines its value, and that lengthy calculation needs only to be performed once. Any other times you encounter a sub-problem that you’ve seen before, its value can be found using the memoization array.

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Alaina Kafkes

iOS engineer, writer, and general glossophile. she/her.