20.2.2 - Adjacency List
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Practice Questions
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What does a graph consist of?
💡 Hint: Think about network connections.
Describe an adjacency list.
💡 Hint: Consider how you would list friends for each person.
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Interactive Quizzes
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What does BFS explore?
💡 Hint: Think about how we explore new buildings in a neighborhood.
Using an adjacency list reduces the time complexity of BFS to which of the following?
💡 Hint: Focus on how the graph structure affects algorithm performance.
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Challenge Problems
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Given the following graph with 6 vertices represented as an adjacency list {1: [2, 3], 2: [1, 4], 3: [1], 4: [2, 5, 6], 5: [4], 6: [4]}, implement BFS starting from vertex 1. Provide the order of visited vertices and their levels.
💡 Hint: Track your progress with a queue and level records.
Consider a graph where you need to compute the shortest path from vertex A to vertex D. Describe how you would implement BFS to find this path.
💡 Hint: Think about the relationships between vertices as you explore.
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