An algorithm is designed to determine electric vehicle (EV) charging rates at a public smart-charging station. The rates are calculated based on the vehicle's remaining battery percentage, the customer's membership tier (where 1 is Bronze, 2 is Silver, and 3 is Gold), and the hour of the day (in 24-hour format).
1 # EV Charging Rate Calculator
2
3 IF (battery_level <= 15) OR (membership_tier = 3) THEN
4 SEND "Priority Eco Rate" TO DISPLAY
5 ELSE
6 IF (hour >= 23) OR (hour < 6) THEN
7 IF membership_tier = 2 THEN
8 SEND "Off-Peak Silver Rate" TO DISPLAY
9 ELSE
10 SEND "Off-Peak Standard Rate" TO DISPLAY
11 END IF
12 ELSE
13 IF (hour >= 11) AND (hour <= 14) THEN
14 SEND "Solar Peak Surcharge" TO DISPLAY
15 ELSE
16 SEND "Standard Day Rate" TO DISPLAY
17 END IF
18 END IF
19 END IF
Complete the table to show the output of the algorithm for each set of inputs.
| Inputs | Output |
|---|---|
battery_level = 45, membership_tier = 3, hour = 12 | |
battery_level = 20, membership_tier = 1, hour = 4 | |
battery_level = 80, membership_tier = 2, hour = 13 |
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.