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Leetcode 463. Island Perimeter

Given a rectangular grid with exactly one island of orthogonally connected land cells, compute the island's perimeter by summing the edges of land cells that are adjacent to water or the grid boundary (equivalently use 4*land_cells - 2*shared_edges). Grid dimensions ≤100 and connections are only horizontal/vertical.

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Google

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Early October, 2024

Google

Junior

Given a rectangle screen and starting at (0,0) coordinate, find the perimeter of the screen

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