An environmental sensor records the daily peak UV index over a six-day period. The recorded UV index values are:
8,4,6,2,9,3 8, \quad 4, \quad 6, \quad 2, \quad 9, \quad 3 8,4,6,2,9,3A bubble sort is used to arrange these values in ascending order.
State the number of passes that will be completed to fully sort this list.
159 exam-style questions on Edexcel GCSE Computer Science Algorithms, covering Constructs for solving problems, Variables, constants and data structures, Arithmetic, relational and logical operators, Tracing algorithm output with trace tables, Types of error and correcting logic errors, Standard algorithms (sorts and searches), and Evaluating algorithm fitness and efficiency. Each one has a worked solution and a mark scheme showing where the marks go.