Leetcode Problem 1152. Analyze User Website Visit Pattern

1152. Analyze User Website Visit Pattern

Leetcode Solutions

Pattern Analysis with Sorting, Combinations, and Counting

  1. Create a dictionary (users) to map each username to a list of websites they visited, sorted by timestamp.
  2. Iterate through the sorted username, timestamp, and website arrays to populate the users dictionary.
  3. Create a patterns counter to keep track of the number of users that visited each pattern.
  4. For each user, generate all possible combinations of 3 websites they visited.
  5. Update the patterns counter with these combinations, ensuring each combination is counted only once per user by converting to a set.
  6. Find the pattern with the maximum count using the patterns counter. If there is a tie, return the lexicographically smallest pattern.
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Brute Force Pattern Analysis with Sorting and Hashing

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