Hello Codeforces Community, Here are the editorials for the recently held HackerEarth September Circuits '21. Each and every problem along with their solutions are explained in detail.

Below are the links to the solutions:-

1. Zero Subarray

2. Special Matrix

3. Minimum Radius

4. Minimum Length

Rest of the problems will be updated soon.

Any suggestions are welcome, do comment in this blog post.

Thank You!!