AA Competitive Programming Platform
Love competitive programming? Start here.
AACPOJ is the practice platform for AA competitive programming courses. You can register an account yourself; after enrolling in a course and passing the placement test, your teacher will add you to the course and open official assignments, problem sets, and class content.
What is competitive programming?
Competitive programming is about solving math, logic, and algorithmic problems with code under contest conditions. Taiwan's APCS exam covers part of this training.
In Taiwan's competitive programming training and official contests, C++ is the main language. Students learn to break down problems, design algorithms, and implement ideas reliably under time limits.
Competitive programming is different from math contests. Beyond finding a solution, you need to debug, manage time, handle contest pressure, and choose a practical strategy.
More than APCS preparation
APCS is where many students begin testing their programming ability; competitive programming training extends that into fuller problem-solving skills.
Build foundations beyond the test
Some algorithms, data structures, or math ideas may not look like APCS topics at first, but they build stronger analysis and problem decomposition skills.
Steady progress takes long-term practice
Through leveled courses, problem-set practice, and regular checks, students gradually build judgment for unfamiliar problems.
How to start
How to join a course
- Register an AACPOJ account You can create the account yourself, then use this username to join a course.
- Enroll and pass the placement test After enrollment and level confirmation, your teacher will place you in a suitable class and pace.
- Teacher adds you to the course Once added, you can see the official assignments, problem sets, submission records, and class content for your course.
Who it is for
Who should learn competitive programming?
- Students preparing for APCS who want more than fixed patterns
- Students who want to build problem-solving skills from C++ basics
- Students who want to join school or external programming contests
- Students who know some programming but struggle to break down new problems
Why AACPOJ?
AACPOJ is used alongside AA competitive programming courses to help students build a steady practice rhythm. Many students have achieved strong results in school and external contests.
Complete 8-tier course path
Learning is sequenced by level, progressing from C++ basics to foundational algorithms and advanced contest training.
Teacher-curated problem sets
Problems are opened according to class progress and practice goals, including basics, practice problems, and extra challenges.
Built-in notes system
Write solution notes, organize thoughts, keep records of mistakes, and share with classmates or the class when arranged by your teacher.
Regular mock exams to check progress
Stage-based tests check concepts and implementation ability, helping students understand their current level and next steps.
Demo preview
See how practice works on AACPOJ
Problem pages combine statements, the online IDE, sample tests, submissions, and results; assignment lists organize progress by unit.
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Official content is opened by teachers per class
You can register an account yourself; assignments, problem sets, submission records, and class content open after your teacher adds the account to a course.
Ready to begin?
Creating an AACPOJ account is free. After enrolling in a course and passing the placement test, your teacher will open full assignments, problem sets, submissions, and course resources by class.