Given an integer `n`, return a string array `answer` (**1-indexed**) where:
- `answer[i] == "FizzBuzz"` if `i` is divisible by 3 and 5.
- `answer[i] == "Fizz"` if `i` is divisible by 3.
- `answer[i] == "Buzz"` if `i` is divisible by 5.
- `answer[i] == i` (as a string) if none of the above conditions are true.