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main.py
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playground.py

Design a Parking Lot

Implement the `ParkingLot` class with `park_vehicle` and `remove_vehicle` methods. Handle `NoSpotFoundException`.

solution.py
tests.json
Python 3.10

class ParkingLot:

def __init__(self, capacity):

self.capacity = capacity

self.spots = [None] * capacity


def park_vehicle(self, vehicle):

# TODO: Implement finding logic

spot_idx = self._find_spot()

if spot_idx == -1:

raise Exception("Full")

Console Output
> Ready to run...
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ParkingLot+ levels: List[Level]+ park_vehicle()+ get_instance()Level+ spots: List[Spot]+ floor_id: int+ is_full()ParkingSpot+ type: SpotType+ vehicle: Vehicle1..*
Figure 2.1: Class Relationships
def
class
import
return
if
for
while
try

import threading


class ParkingLot:

    _instance = None

    _lock = threading.Lock()


    def __new__(cls):

        if not cls._instance:

            with cls._lock:

                if not cls._instance:

                    cls._instance = super().__new__(cls)

        return cls._instance

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