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intermediate level

Greedy Algorithms

Quick Answer

What is Greedy Algorithms?

A greedy algorithm makes the locally optimal choice at each step, hoping to find the global optimum. The challenge is proving that this works — and recognizing when it doesn't. RunTimeFix teaches greedy through the exchange argument technique: you assume an optimal solution differs from the greedy solution, then show you can swap elements without worsening the result. We cover sorting-based greedy (activity selection, job scheduling), the exchange argument proof pattern, and constructive algorithms where you build a valid answer step by step.

  • greedy algorithms
  • greedy
  • activity selection
  • interval scheduling
  • exchange argument
  • constructive algorithms

Study Material for Greedy Algorithms

Ch 16: Greedy Algorithms & Constructive Problems

The Greedy Paradigm · Sorting-Based Greedy · Interval Scheduling (Activity Selection) · The Exchange Argument · Constructive Algorithms

Related Topics

Dynamic ProgrammingAlgorithmsCompetitive Programming
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