Below is a compilation of useful resources relating to problem sets, API references, and other useful links. If you are a member of the ACM-ICPC Interest Group, you are encouraged to take some time to look through this list of resources.
If you have a resource that you think would be a good addition to this list then please share it! Email us at firstname.lastname@example.org with the information that you would like us to add.
PC2 Team Guide
ACM-ICPC Kattis Problems
ACM-ICPC Live Archive
Northeast Regional Preliminary ACM Programming Competition at Western New England University
Mid-Atlantic Region ACM-ICPC Programming Competition
ACM-ICPC Regional Programming Competitions
Java Collections API Flowchart
Java Collections API Diagram
Java Collections Table
Java Programming CheatSheet
Top 20 Online Resources to Learn Java Programming Faster and better