CSES - CSES Problem Set May 2025 Update

The journey towards 1000 problems continues!

We have added 100 new problems to the CSES Problem Set. With this addition, the total number of problems has reached 400.

The new problems include both easy and difficult ones, and we hope that they are interesting and useful to you.

We have also published model solutions to some of the problems. If a model solution for a problem is available, it can be accessed after solving the problem through the "Analysis" link. New model solutions will be gradually added.

CSES also has a new feature called CSES for Teachers. Teachers can now create their own courses using the problems from the CSES Problem Set, and track the progress of their students.