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Once you start caching, speed is never an issue. I just used an array for my look up table and even just doing a linear traversal of it, I was well under the time limit.
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Is Fibo
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Yeah memoization is the key.
Once you start caching, speed is never an issue. I just used an array for my look up table and even just doing a linear traversal of it, I was well under the time limit.