24.1.3 - Valid Topological Ordering
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Practice Questions
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What is the in-degree of a vertex?
💡 Hint: Think about how many edges arrive at a vertex.
Can a vertex with zero in-degree be processed first in topological sorting?
💡 Hint: If no tasks depend on it, it can go first!
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Interactive Quizzes
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What is the primary goal of topological sorting?
💡 Hint: Think about the purpose of ordering in task management.
True or False: A graph must be acyclic to perform a topological sort.
💡 Hint: Remember the nature of cycles and their constraints.
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Challenge Problems
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Design an algorithm to implement topological sorting with an input of edges in a directed graph. What are the expected outcomes?
💡 Hint: Think about how you can maintain order while processing.
Consider a scenario with tasks {A, B, C, D} and dependencies {A->B, A->C, B->D}. What is a possible topological order?
💡 Hint: Every time you select a task, ensure no others depend on it that haven't been completed.
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