Overview Competitive Programming 4 (CP4) is the latest edition of the legendary book series by Steven Halim , Felix Halim , and Suhendry Effendy . It is widely considered the bible for competitive programming, covering everything from basic data structures to advanced algorithms used in ICPC, IOI, and other coding competitions.

: Buy CP4 if you are serious about competitive programming. Use the official GitHub repo to practice and verify code. Avoid shady PDF sites – they hurt the community and often provide incomplete/outdated versions. Would you like a table of contents comparison between CP3 and CP4, or a curated list of GitHub starter templates based on CP4’s style?