A university schedules final exams, aiming to minimize conflicts. What happens to the number of distinct exam slots required if a small group of students retakes multiple courses?

💡 Explanation

The number of exam slots increases, because the exam scheduling can be modeled as a graph coloring problem, where courses are nodes and shared students are edges; the chromatic number represents the minimum slots, therefore more student overlap increases the chromatic number, rather than allowing for fewer slots.

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