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Grokking the Coding Interview Patterns in Go

Solution: Number of Islands

Explore the Union Find algorithm to solve the Number of Islands problem by counting and merging connected land cells in a grid. Understand how to identify connected components to efficiently determine the total islands, while managing time and space complexity.

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Statement

Let’s consider a scenario with an (m×n)(m \times n) 2D grid containing binary numbers, where '0' represents water and '1' represents land. If any '1' cells are connected to each other horizontally or vertically (not diagonally), they form an island. Your task is to return the total number of islands in the grid.

Constraints:

  • 1≤1 \leq grid.length ≤50\leq 50 ...