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Hash Table Practice

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Comprehension Questions

Question Answer
Why is a good Hash Function Important?
How can you judge if a hash function is good or not?
Is there a perfect hash function? If so what is it?
Describe a strategy to handle collisions in a hash table
Describe a situation where a hash table wouldn't be as useful as a binary search tree
What is one thing that is more clear to you on hash tables now

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@CheezItMan CheezItMan left a comment

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Nice work, you hit the learning goals here. Well done. Thanks for getting this in.

Comment on lines +5 to +6
# Time Complexity: O(n) where n is the size of the strings array
# Space Complexity: O(n) where n is the size of the strings array

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👍

# in the case of a tie it will select the first occuring element.
# Time Complexity: ?
# Space Complexity: ?
# Time Complexity: O(nlogn) because of the sort_by algorithm

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That depends on if the number of distinct elements compared to the number of elements overall. So maybe O(n + k log k) where n is the number of elements and k the number of distinct elements.

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2 participants