Logic Gym is a library of 10,036+ validated coding practice problems — Java, Python, and C++, from first loops to contest-grade challenges. Every problem is solution-verified and auto-graded, so you can drop a deep bench of practice into any course.
Three languages. Five levels. Enough validated supply to fuel spaced practice, remediation, and challenge work all year — without hunting for new problems.
Not another scraped worksheet dump. A curated, validated, auto-graded supply of problems that plugs straight into the course you already teach.
Every problem carries a reference solution, and its tests are checked against known-good answers. Curated from respected programming-education and code-generation research datasets and original 2Sigma School content — then de-duplicated and topic-classified.
Each problem ships with validated unit tests for instant pass/fail, plus Rubriq quality feedback. Zero hand-grading, zero answer-key wrangling.
Add Logic Gym alongside your existing textbook with the multi-curriculum classroom — mix and match languages and levels, with granular control over what each class sees.
Hand-pick a set, or let assignment routines cluster students by mastery and auto-select level-matched problems for each group.
Three languages × five levels — problem books, not textbooks. Filter to exactly the practice your class needs, or browse the whole shelf.
Every book ships with Alps. Add any set to your class in a click, then assign it directly or mix it into your curriculum.
Logic Gym is built to feed the workflows you already run on Alps.
Pick languages and levels and add them next to your existing textbook with the multi-curriculum classroom — keep them hidden until you assign, with granular per-class visibility.
Hand-pick problems for a unit, or fire an assignment routine — warm-up, practice, spiral review, remediation — that clusters students and targets each group.
Auto-grading and BloomIQ analytics turn every attempt into a signal — so the next assignment lands exactly where each student needs it.
The same proven progression in Java, Python, and C++ — so a student can climb from first loops to contest problems without ever leaving the gym.
Most "free problem sets" are a copy-paste gamble — no solutions, no tests, no idea if the answer key is even right. Logic Gym is the opposite.
| Feature | Logic Gym | Typical Problem Sets |
|---|---|---|
| Solution-verified with validated tests | ||
| Auto-graded in the browser | ||
| Organized by language and level | ~ | |
| Adaptive assignment by mastery | ||
| Mixes into your existing curriculum | ~ | |
| Thousands of problems from one source |
Start free, add the Logic Gym sets your class needs, and let auto-grading and adaptive routines do the heavy lifting.