Solution: Island Perimeter
Explore how to calculate the perimeter of a single island within a grid by understanding adjacency rules and applying efficient traversal strategies. This lesson guides you through the step-by-step process of counting edges, reducing shared borders, and implementing a solution with optimal time and space complexity in matrix problems.
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Statement
You are given a grid with dimensions row x col, where each cell represents either land (grid[i][j] = 1) or water (grid[i][j] = 0). The grid satisfies the following conditions:
Cells are connected only horizontally or vertically (not diagonally).
The grid is surrounded by water and contains exactly one island, consisting of one or more connected land cells.
The island has no lakes, meaning no water is enclosed within the island that connects to the surrounding water. ...