Leetcode problems

Each day (ideally) we'll attempt the daily leetcode problem. We'll make a new folder for each day's problem. Anyone who wants can submit a markdown file, iPython notebook, etc. with their notes, questions, solutions, test cases, or other problem-related files.

Note: Our group is currently taking a break from grinding leetcode. The table below will continue to update automatically, but newer problems likey won't have their solutions provided. Pull requests will still be supported and reviewed if others would like to contribute solutions.

Problems we've attempted so far:

📆 Date	⚙️ Problem	📝 Link to notes	🚦 Difficulty
July 1, 2024	1550	Click here	🟢 Easy
July 2, 2024	350	Click here	🟢 Easy
July 3, 2024	1509	Click here	🟡 Medium
July 4, 2024	2181	Click here	🟡 Medium
July 5, 2024	2058	Click here	🟡 Medium
July 6, 2024	2582	Click here	🟢 Easy
July 7, 2024	1518	Click here	🟢 Easy
July 8, 2024	1823	Click here	🟡 Medium
July 9, 2024	1701	Click here	🟡 Medium
July 10, 2024	1598	Click here	🟢 Easy
July 11, 2024	1190	Click here	🟡 Medium
July 12, 2024	1717	Click here	🟡 Medium
July 13, 2024	2751	Click here	🔴 Hard
July 14, 2024	726	Click here	🔴 Hard
July 15, 2024	2196	Click here	🟡 Medium
July 16, 2024	2096	Click here	🟡 Medium
July 17, 2024	1110	Click here	🟡 Medium
July 18, 2024	1530	Click here	🟡 Medium
July 19, 2024	1380	Click here	🟢 Easy
July 20, 2024	1605	Click here	🟡 Medium
July 21, 2024	2392	Click here	🔴 Hard
July 22, 2024	2418	Click here	🟢 Easy
July 23, 2024	1636	Click here	🟢 Easy
July 24, 2024	2191	Click here	🟡 Medium
July 25, 2024	912	Click here	🟡 Medium
July 26, 2024	1334	Click here	🟡 Medium
July 27, 2024	2976	Click here	🟡 Medium
July 28, 2024	2045	Click here	🔴 Hard
July 29, 2024	1395	Click here	🟡 Medium
July 30, 2024	1653	Click here	🟡 Medium
July 31, 2024	1105	Click here	🟡 Medium
August 1, 2024	2678	Click here	🟢 Easy
August 2, 2024	2134	Click here	🟡 Medium
August 3, 2024	1460	Click here	🟢 Easy
August 4, 2024	1508	Click here	🟡 Medium
August 5, 2024	2053	Click here	🟢 Easy
August 6, 2024	3016	Click here	🟡 Medium
August 7, 2024	273	Click here	🔴 Hard
August 8, 2024	885	Click here	🟡 Medium
August 9, 2024	840	Click here	🟡 Medium
August 10, 2024	959	Click here	🟡 Medium
August 11, 2024	1568	Click here	🔴 Hard
August 12, 2024	703	Click here	🟢 Easy
August 13, 2024	40	Click here	🟡 Medium
August 14, 2024	719	Click here	🔴 Hard
August 15, 2024	860	Click here	🟢 Easy
August 16, 2024	624	Click here	🟡 Medium
August 17, 2024	1937	Click here	🟡 Medium
August 18, 2024	264	Click here	🟡 Medium
August 19, 2024	650	Click here	🟡 Medium
August 20, 2024	1140	Click here	🟡 Medium
August 21, 2024	664	Click here	🔴 Hard
August 22, 2024	476	Click here	🟢 Easy
August 23, 2024	592	Click here	🟡 Medium
August 24, 2024	564	Click here	🔴 Hard
August 25, 2024	145	Click here	🟢 Easy
August 26, 2024	590	Click here	🟢 Easy
August 27, 2024	1514	Click here	🟡 Medium
August 28, 2024	1905	Click here	🟡 Medium
August 29, 2024	947	Click here	🟡 Medium
August 30, 2024	2699	Click here	🔴 Hard
August 31, 2024	1514	Click here	🟡 Medium
September 1, 2024	2022	Click here	🟢 Easy
September 2, 2024	1894	Click here	🟡 Medium
September 3, 2024	1945	Click here	🟢 Easy
September 4, 2024	874	Click here	🟡 Medium
September 5, 2024	2028	Click here	🟡 Medium
September 6, 2024	3217	Click here	🟡 Medium
September 7, 2024	1367	Click here	🟡 Medium
September 8, 2024	725	Click here	🟡 Medium
September 9, 2024	2326	Click here	🟡 Medium
September 10, 2024	2807	Click here	🟡 Medium
September 11, 2024	2220	Click here	🟢 Easy
September 12, 2024	1684	Click here	🟢 Easy
September 13, 2024	1310	Click here	🟡 Medium
September 14, 2024	2419	Click here	🟡 Medium
September 15, 2024	1371	Click here	🟡 Medium
September 16, 2024	539	Click here	🟡 Medium
September 17, 2024	884	Click here	🟢 Easy
September 18, 2024	179	Click here	🟡 Medium
September 19, 2024	241	Click here	🟡 Medium
September 20, 2024	214	Click here	🔴 Hard
September 21, 2024	386	Click here	🟡 Medium

Join our discussion!

If you're a member of our lab and/or a Dartmouth community member, feel free to join our Slack channel to discuss daily leetcode problems!

Submit your own notes and/or solution(s)

1. Start by forking this repository. Or if you've already forked this repository, you should visit your fork and make sure to click the button to sync it up with this (source) repository.
2. In your fork, in the menu near the top click on Actions to open up the GitHub Actions list. Then click on Create New Note for Daily LeetCode Problem and then click Run workflow to create your new notes file for today's problem. Click the link to the notes on today's problem in the last row of the table above and you should see a markdown (.md) file named for your GitHub username. Edit that to add your notes!

• If you're the "build-it-yourself" type, it's also OK to create your notes file manually. Just navigate to the problems folder and click the Add file button on the right. Choose the Create new file option:
  • File name: problems/<PROBLEM NUMBER>/<your name>.md (where you should replace <PROBLEM NUMBER> with the leetcode problem ID code, and <your name> with either your first name or your GitHub username (your choice!), in lowercase letters. E.g., Jeremy's solution to problem 350 would be named problems/350/jeremy.md
  • Contents: Any format is fine, but we suggest starting with our template file. Then add your notes/solution as you solve the problem! Make sure to commit your changes (and it's fine to make multiple commits as you're working on the problem).

3. Once you've added your file(s), start a pull request to add your changes to the ContextLab repository so that others can see how you approached the problem.

Other stuff

The table listing each day's problems and links to our solutions should be updated automatically via this action (run each day at 00:01 UTC, which is 1 minute after the daily problems are released). Sometimes it's a little late.

Question? Comments? Concerns?

You can work through problems "live" in our Slack channel. To make comments on a specific solution, make suggestions for this repository in general, etc., consider filing an issue.