How to learn DFS Connected Components - Island Counting for coding interviews?

Master DFS Connected Components - Island Counting by understanding the core concept and practicing related problems. Key topics: number of islands, connected components, flood fill, DFS graph, leetcode 200.

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DFS Connected Components - Island Counting

Use DFS to find connected components and count islands in grids. Flood fill and province counting problems.

Topics

number of islandsconnected componentsflood fillDFS graphleetcode 200leetcode 547

What you'll learn

•Core concepts and intuition behind DFS Connected Components - Island Counting
•Step-by-step implementation with code examples
•Time and space complexity analysis
•Common interview problems and variations

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Other subpatterns in Graph Traversal Patterns - DFS and BFS

BFS Connected Components - Shortest Path in Grid

Use BFS for shortest path in unweighted graphs. Solve word ladder, rotting oranges, and matrix problems.

Topological Sort - Kahn's Algorithm

Master topological sorting using Kahn's BFS algorithm. Solve course schedule and build order problems.

Cycle Detection in Directed Graph

Detect cycles in directed graphs using DFS with coloring (white, gray, black) approach.

Bellman-Ford and BFS with K Stops

Find shortest paths with constraints using Bellman-Ford algorithm and BFS with limited stops.

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