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Grokking the Coding Interview Patterns in C++

Solution: Number of Islands

Explore the Union Find pattern to solve the problem of counting islands in a grid containing '0's and '1's. This lesson guides you through initializing the Union Find structure, connecting adjacent land cells, and tracking connected components to determine the total number of islands efficiently through step-by-step solution building and code implementation.

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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 ...