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question:I have a little glitchy game and I'd like to present it as a Black Friday "doorbuster" to my customers. Unfortunately, my game can only be played once every hour. It will be offered to the first 12 customers who log in during that hour and to only one customer from each of 5 different IP addresses. This creates a complex situation where I need to write some custom software to manage access. Here I present a token bucket algorithm which I'll then modify to fit these Black Friday rules: ``` from datetime import datetime, timedelta class TokenBucket: def __init__(self, rate, capacity, last_modified=None): self.rate = rate # tokens per hour self.capacity = capacity # maximum tokens possible self.tokens = capacity self.last_modified = last_modified if last_modified else datetime.now() def get_token(self): current_time = datetime.now() # calculate elapsed time since last modified elapsed_time = (current_time - self.last_modified).total_seconds() / 3600 # convert to hours # calculate tokens gained gained_tokens = self.rate * elapsed_time self.tokens = min(self.capacity, self.tokens + gained_tokens) self.last_modified = current_time # check if there are tokens left if self.tokens >= 1: self.tokens -= 1 return True # token acquired else: return False # no token acquired class BlackFridayGame: def __init__(self): self.token_bucket = TokenBucket(rate=12, capacity=12) def play_game(self, ip_address): if self.token_bucket.get_token(): print(f"Grant access to {ip_address}") return True else: print(f"Deny access to {ip_address}") return False ``` In this current implementation, it simply uses a token bucket to limit the number of games that can be played within an hour to 12. What steps will I need to take to implement the rule that only one customer from each of 5 different IP addresses can play the game?

answer:from datetime import datetime, timedelta class TokenBucket: def __init__(self, rate, capacity, last_modified=None): self.rate = rate # tokens per hour self.capacity = capacity # maximum tokens possible self.tokens = capacity self.last_modified = last_modified if last_modified else datetime.now() def get_token(self): current_time = datetime.now() elapsed_time = (current_time - self.last_modified).total_seconds() / 3600 # convert to hours gained_tokens = self.rate * elapsed_time self.tokens = min(self.capacity, self.tokens + gained_tokens) self.last_modified = current_time if self.tokens >= 1: self.tokens -= 1 return True else: return False class BlackFridayGame: def __init__(self): self.token_bucket = TokenBucket(rate=12, capacity=12) self.access_ips = set() self.last_reset_time = datetime.now() def reset_ips(self): current_time = datetime.now() if (current_time - self.last_reset_time) > timedelta(hours=1): self.access_ips.clear() self.last_reset_time = current_time def play_game(self, ip_address): self.reset_ips() if ip_address in self.access_ips: print(f"Deny access to {ip_address} (Already played)") return False if self.token_bucket.get_token(): self.access_ips.add(ip_address) print(f"Grant access to {ip_address}") return True else: print(f"Deny access to {ip_address} (Tokens exhausted)") return False

question:I'll give you a password, and you write a script that checks whether a given string is the same as the password. However, the **password needs to be obfuscated** for security reasons. There's a publicly available encryption algorithm (lets say, XOR with a public key) that generates a secure hash. In this case, our "encryption algorithm" is simply adding 3 to the ASCII of each character. So, if the password is "abc", then the obfuscated version would be (a+3, b+3, c+3), which is (99, 100, 101). I'll give you the obfuscated password. Can you write a script that checks whether a given string is the same as the original password?

answer:def obfuscate_password(password): Obfuscates the password by adding 3 to the ASCII value of each character. Args: password (str): The original password. Returns: str: The obfuscated password. obfuscated = ''.join(chr(ord(char) + 3) for char in password) return obfuscated def is_correct_password(obfuscated_password, user_input): Checks if the user_input matches the original password after applying the same obfuscation. Args: obfuscated_password (str): The obfuscated password. user_input (str): The password input by the user. Returns: bool: True if the user_input matches the original password, False otherwise. obfuscated_user_input = obfuscate_password(user_input) return obfuscated_user_input == obfuscated_password

question:I have been given access to a handful of cameras that have been placed around my local town and I am looking to create an AI that can analyze the feeds from the cameras and be able to identify potential crimes, such as shoplifting or vandalism. I have access to the camera feeds via RTSP (Real-Time Streaming Protocol) and I would like to develop the AI in Python, specifically leveraging libraries such as OpenCV. I can you help me get started on understanding the requirements for the AI, the technical setup, and how to develop the AI using Python and OpenCV?

answer:import cv2 def capture_rtsp_stream(rtsp_url): Capture and display video from an RTSP stream URL. # Open a connection to the RTSP stream cap = cv2.VideoCapture(rtsp_url) if not cap.isOpened(): print(f"Cannot open RTSP stream from URL: {rtsp_url}") return while True: ret, frame = cap.read() if not ret: break # Display the frame cv2.imshow('RTSP Stream', frame) # Wait for 1 ms and check if the user has pressed the 'q' key to exit if cv2.waitKey(1) & 0xFF == ord('q'): break # Release the capture and close the window cap.release() cv2.destroyAllWindows() if __name__ == "__main__": rtsp_url = "rtsp://your_camera_ip_address/stream" capture_rtsp_stream(rtsp_url)

question:In this problem, you will write a Python function to calculate the sum of the squares of the numbers in a given list. The function should be able to handle empty lists and lists that contain non integer/float values.

answer:def sum_of_squares(numbers): Returns the sum of the squares of the numbers in the given list. Non-integer/float values are ignored. return sum(x**2 for x in numbers if isinstance(x, (int, float)))