Leetcode Problem 1568. Minimum Number of Days to Disconnect Island

1568. Minimum Number of Days to Disconnect Island

Leetcode Solutions

DFS Approach to Disconnect Island

  1. Count the number of islands using DFS. If the count is not 1, return 0.
  2. Iterate over each cell in the grid.
  3. If the current cell is land (1), change it to water (0) and count the number of islands again.
  4. If the new count is not 1, return 1 as we have successfully disconnected the island.
  5. Change the cell back to land (1) before moving to the next cell.
  6. If no single change leads to disconnection, return 2.
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BFS Approach to Disconnect Island

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