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3 cards from this section. Quick, good the night before a test.
What is vertex colouring?
Think of it like arranging different subjects without conflicts.
What does the chromatic number represent?
It's a specific quantity related to the graph's vertices.
What does vertex colouring aim to achieve?
Remember what you aim to achieve with colour assignments.
True or False: The greedy algorithm always guarantees an optimal solution in vertex colouring.
Reflect on what happens if you choose the wrong vertex first.
Given a graph where vertex degrees vary, design a strategy for colour assignment that minimizes overlaps, and analyze its effectiveness.
Consider how high-degree vertices limit your colour options.
Suppose you have a complete graph with ten vertices. How many colours must you use, and why? Can you relate this to chromatic number?
Recall how complete graphs are structured.
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