Leetcode Problem 916. Word Subsets

916. Word Subsets

Leetcode Solutions

Reduce to Single Word in B

  1. Create a frequency map maxFreq to store the maximum frequency of each letter from words2.
  2. For each word in words2, update maxFreq with the maximum frequency of each letter.
  3. Initialize an empty list result to store the universal strings.
  4. For each word in words1, create a frequency map wordFreq.
  5. Compare wordFreq with maxFreq to check if the current word is a universal string.
  6. If the current word is a universal string, add it to result.
  7. Return the result list.
UML Thumbnail

Brute Force Check of Each Word

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