Leetcode Problem 1202. Smallest String With Swaps

1202. Smallest String With Swaps

Leetcode Solutions

Depth-First Search (DFS) to Find Connected Components

  1. Build an adjacency list from the given pairs, creating edges between the indices.
  2. Initialize a visited set to keep track of visited nodes.
  3. For each index in the string, if it has not been visited, perform DFS to find all indices in the connected component.
  4. During DFS, collect the characters of the connected component and their respective indices.
  5. Sort the characters within each connected component.
  6. Reconstruct the string by placing the sorted characters back into their original indices.
  7. Return the reconstructed string.
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Disjoint Set Union (DSU) to Find Connected Components

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