555 B
555 B
Hints
This is a short and simple exercise, so it is best to avoid complicating it.
1. Define the rank range
- You need to return a range of integers
2. Define the file range
- You need to return a range of uppercase characters.
- Characters use single-quotes, such as
'W',
3. Transform the rank range into a list of ranks
- The
collect()function is your friend here.
4. Transform the file range into a list of files
- See task 3.