| 1 | import random | |
| 2 | import string | |
| 3 | ||
| 4 | ||
| 1 | 5 | class Robot: |
| 6 | _used_names = set() | |
| 7 | ||
| 2 | 8 | def __init__(self): |
| 3 | pass | |
| 9 | self._name = None | |
| 4 | 10 | |
| 5 | 11 | @property |
| 6 | 12 | def name(self) -> str: |
| 7 | pass | |
| 13 | if self._name is None: | |
| 14 | self._generate_name() | |
| 15 | return self._name | |
| 8 | 16 | |
| 9 | 17 | def reset(self) -> None: |
| 10 | pass | |
| 18 | # Edge Case: Removing the current name from used names before resetting | |
| 19 | if self._name: | |
| 20 | self._used_names.discard(self._name) | |
| 21 | self._generate_name() | |
| 22 | ||
| 23 | def _generate_name(self) -> None: | |
| 24 | # Edge Case: Ensuring name uniqueness by retrying if name is already taken | |
| 25 | # Prevent infinite loop by limiting attempts | |
| 26 | max_attempts = 1000 | |
| 27 | attempts = 0 | |
| 28 | ||
| 29 | while attempts < max_attempts: | |
| 30 | # Edge Case: Generating random names with exactly 2 uppercase letters followed by 3 digits | |
| 31 | letters = ''.join(random.choices(string.ascii_uppercase, k=2)) | |
| 32 | digits = ''.join(random.choices(string.digits, k=3)) | |
| 33 | new_name = letters + digits | |
| 34 | ||
| 35 | # Edge Case: Checking for name collision and only accepting unique names | |
| 36 | if new_name not in self._used_names: | |
| 37 | self._used_names.add(new_name) | |
| 38 | self._name = new_name | |
| 39 | return | |
| 40 | attempts += 1 | |
| 41 | ||
| 42 | # If we've exhausted our attempts, raise an exception | |
| 43 | raise RuntimeError("Unable to generate unique robot name after maximum attempts") |