Leetcode Problem 959. Regions Cut By Slashes
Leetcode Solutions
Union-Find Approach to Count Contiguous Regions
- Initialize a Union-Find data structure with 4 * N * N nodes, where N is the size of the grid.
- Iterate over each cell in the grid, connecting the internal triangles based on the character in the cell (' ', '/', '\').
- Connect the triangles in adjacent cells that touch at the edges.
- Use the Union-Find data structure to merge connected nodes.
- After processing all cells, count the number of unique sets in the Union-Find data structure, which represents the number of regions.
Depth-First Search (DFS) Approach to Count Contiguous Regions
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