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HomePearson Edexcel International IGCSE Computer ScienceProblem-Solving and Programming: Algorithms
Pearson Edexcel International · IGCSE · Computer Science · Revision Notes

Problem-Solving and Programming: Algorithms

63 words · Last updated July 2026

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What you'll learn

How to design and represent algorithms.

Key ideas

  • Decomposition and abstraction.
  • Flowcharts and pseudocode to represent algorithms.
  • Searches: linear and binary; sorts: bubble.

Exam tips

  • Remember binary search needs an ordered list.
  • Trace algorithms step by step.

Common mistakes

  • Using binary search on unsorted data.
  • Confusing decomposition and abstraction.
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