GCSE AQA SLR7 Algorithm efficiency More than one algorithm can often be used to solve the same problem, so which one should you choose? In this video we take a look how to compare algorithms for solving the same problem based on their time efficiency. Also in this topic... GCSE AQA SLR7 What’s an algorithm GCSE AQA SLR7 Abstraction GCSE AQA SLR7 Inputs, processes and outputs GCSE AQA SLR7 Using trace tables to determine the purpose of algorithms GCSE AQA SLR7 Merge sort