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🧠 Python-хитрая задача + решение

🖍️ Условие:
У тебя есть список логов (user, login/logout).
Найди тех, кто зашел, но не вышел.

📜 Пример:

logs = [
("alice", "login"),
("bob", "login"),
("alice", "logout"),
("dave", "login"),
("bob", "logout"),
("carol", "login"),
("dave", "logout")
]


________
💻 Решение:

from collections import defaultdict

def find_stuck_users(logs):
counter = defaultdict(int)
for user, action in logs:
if action == "login":
counter[user] += 1
elif action == "logout":
counter[user] -= 1
return sorted([user for user, count in counter.items() if count > 0])


🛠Ответ: "carol"

#Python #Challenge #DevPuzzle

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🧠 Python-хитрая задача + решение

🖍️ Условие:
У тебя есть список логов (user, login/logout).
Найди тех, кто зашел, но не вышел.

📜 Пример:


logs = [
("alice", "login"),
("bob", "login"),
("alice", "logout"),
("dave", "login"),
("bob", "logout"),
("carol", "login"),
("dave", "logout")
]


________
💻 Решение:

from collections import defaultdict

def find_stuck_users(logs):
counter = defaultdict(int)
for user, action in logs:
if action == "login":
counter[user] += 1
elif action == "logout":
counter[user] -= 1
return sorted([user for user, count in counter.items() if count > 0])


🛠Ответ: "carol"

#Python #Challenge #DevPuzzle

@python_job_interview

BY Python вопросы с собеседований


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