Leetcode Problem 1034. Coloring A Border
Leetcode Solutions
DFS Approach to Color the Border of a Connected Component
- Perform a DFS starting from the cell (
grid[row][col]), marking visited cells to avoid revisiting. - For each cell visited, check if it is a border cell. A cell is a border cell if it is on the edge of the grid or if any of its adjacent cells have a different color.
- If a cell is a border cell, add it to a list of border cells.
- After the DFS is complete, iterate over the list of border cells and change their color to the new color.
- Return the modified grid.
BFS Approach to Color the Border of a Connected Component
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