LogiSwift tracks packages and flags them for different delivery regions using their tracking codes.
This is pseudo-code for an algorithm that routes packages based on the first character of their tracking code.
1 IF (code[0] >= "A" AND code[0] <= "H") THEN
2 SEND "Region East" TO DISPLAY
3 ELSE
4 IF (code[0] >= "I" AND code[0] <= "P") THEN
5 SEND "Region West" TO DISPLAY
6 ELSE
7 IF (code[0] >= "Q" AND code[0] <= "Z") THEN
8 SEND "Region South" TO DISPLAY
9 ELSE
10 SEND "Invalid tracking code" TO DISPLAY
11 END IF
12 END IF
13 END IF
Complete the table below to show the output of the algorithm for the given inputs.
| Tracking Code | Output displayed |
|---|---|
| MD9921X | |
| ZJ3847Y | |
| 5B8394A |
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.