Algorithms Key Revision Points.

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Presentation transcript:

Algorithms Key Revision Points

Definition Learn this! An algorithm is a set of instructions for solving a problem Algorithms are solutions that always finish and return an answer In real life – recipes, instructions, directions In computer science often written in pseudocode or drawn as flowcharts Language independent – algorithm can be translated form pseudocode to any high level language

Common Algorithms Sorting Bubble Sort Insertion Sort Merge Sort

Common Algorithms Searching Linear Search Binary Search

Exam In your exam you wont be expected to know how the standard algorithms on previous slides work but… You need to: Interpret algorithms written in pseudocode to deduce their function Correct errors in algorithms Write algorithms in pseudocode to solve simple problems Practice all the pseudocode questions from both the AQA and OCR past papers!