Leetcode Problem 1772. Sort Features by Popularity

1772. Sort Features by Popularity

Leetcode Solutions

Frequency Count and Sorting

  1. Initialize a dictionary freq to store the frequency of each feature.
  2. Iterate over each response in responses.
    • Split the response into words and store them in a set to ensure uniqueness.
    • For each feature in features, check if it is in the set of words.
    • If it is, increment the frequency count for that feature in freq.
  3. Sort the features list using a custom sorting function.
    • The sorting function first compares the frequencies in descending order.
    • If two features have the same frequency, it compares their original indices in the features list.
  4. Return the sorted features list.
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Bucket Sort and Index Mapping

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