Download or read book Essential Algorithms for a Level Computer Science written by Craig Sargent and published by . This book was released on 2019-02-21 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Algorithms, Big O notation and the production of pseudocode are aspects of A level study that students often struggle with. There are many online sources that have too much detail and complex coded solutions. Course text books often lack the depth students would benefit from. This book explains all the algorithms in detail that are required by the major English and Welsh examination boards. Each algorithm is presented in plain English, together with typical uses, pseudocode, step-by-step illustrations and fully working code in both Python and Visual Basic. Algorithms are compared and the space and time complexity is explained thoroughly so that students understand why some algorithms are better than others. This book is supported by our free You Tube videos available at: student.craigndave.org