All Questions
Tagged with memoization scala
4 questions
3
votes
1
answer
319
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Efficiently calculate value of Pascal's Triangle using memoization and recursion
So reading about functional programming, applications to dynamic programming, and learning Scala. I figured I would try it out with a popular example, Pascal's Triangle, tests against known values ...
- 133
2
votes
3
answers
408
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List of Happy Numbers in scala
Definition of Happy numbers taken from Wikipedia.
A happy number is defined by the following process: Starting with any positive integer, replace the number by the sum of the squares of its digits ...
- 405
1
vote
1
answer
212
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Longest Collatz sequence in Scala
I am trying to find the longest Collatz Sequence:
Which starting number, ≤ N, produces the longest chain? If many possible such numbers are there print the maximum one. (1 ≤ N ≤ 5×106)
I tried ...
- 109
3
votes
1
answer
1k
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Memoization of Fibonacci using generic Int => Int helper
I'm trying to understand memoization using Scala. I took the Fibonacci sequence as an example because of the high cost of recursively computing numbers in the sequence without memoization.
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- 153