Leetcode Problem 811. Subdomain Visit Count

811. Subdomain Visit Count

Leetcode Solutions

Hash Map Approach

  1. Initialize an empty hash map to store domain visit counts.
  2. Iterate over each count-paired domain in the input list.
  3. Split the count-paired domain into the visit count and the domain string.
  4. While the domain is not empty, do the following: a. If the domain exists in the hash map, increment its count by the visit count. b. If the domain does not exist in the hash map, add it with the visit count. c. Remove the leftmost subdomain from the domain string to move to the higher-level domain.
  5. After processing all count-paired domains, iterate over the hash map to format the output as 'count domain'.
  6. Return the formatted list of count-paired domains.
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Brute Force Approach

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