Has anyone finished LeetCode?

Yes, some users have reported finishing all LeetCode problems. However, "finishing" can mean different things depending on the context:

1. Solving All Problems

• Highly Active Users: A few users have indeed solved all (or nearly all) problems available on LeetCode, including the hard ones. They typically post their achievements in LeetCode's discussion forums or on Reddit.
• Problem Count Variability: LeetCode constantly adds new problems, which means that even if someone completes all problems at a certain point, they would need to continue solving new ones as they are added.

2. Contest and Ranking Achievements

• Some users aim to achieve high rankings in LeetCode's weekly contests or participate in the LeetCode global leaderboard, which is another form of “completion” for competitive programmers.

Challenges of Finishing LeetCode

• Volume: LeetCode has hundreds of problems across easy, medium, and hard difficulty levels, and solving them all requires significant time and dedication.
• Difficulty: Many of the problems, especially at the hard level, require advanced problem-solving and algorithmic knowledge.

Conclusion

While some dedicated individuals have finished solving all the problems on LeetCode, it is an ongoing challenge due to the regular addition of new problems. For those interested in pushing themselves to their coding limits, finishing LeetCode is achievable but requires continuous effort.