Leetcode Problem 721. Accounts Merge
Leetcode Solutions
Depth First Search (DFS) for Merging Accounts
- Create an adjacency list to represent the graph, connecting emails within each account.
- Iterate over the accounts, performing DFS for unvisited emails to collect all emails for each person.
- During DFS, mark emails as visited and store them in a temporary list.
- After DFS, sort the collected emails and prepend the person's name.
- Add the sorted list of emails to the final result.
Disjoint Set Union (DSU) for Merging Accounts
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