Synchronized Keyword | Dataford Interview Questions

What is the synchronized keyword and its uses? Write code.

Asked in the round 2 stage. Multiple follow-ups.

Implement a thread-safe counter with two methods: increment() and get_value(). Multiple threads may call increment() concurrently, and the final value must be correct. Return the final counter value after all operations complete.

Function signature: def run_counter(operations):

operations is a list of strings, where each string is either "inc" or "get". Simulate the operations in order and return a list of values produced by each "get" operation.

Constraints

1 <= len(operations) <= 10^5
operations[i] is either "inc" or "get"
The counter starts at 0
The implementation must be safe under concurrent access

Function Signature

def run_counter(operations):

Your question is Synchronized Keyword. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem