- Executors
-
Learn
Python Learning Hub Runnable examples, NumPy, pandas, and more C & C++ Learning Hub Pointers, memory, STL, and modern C++ C# Learning HubC# basics, OOP, LINQ, async, and .NET exercises Python Algorithms Search, sorting, recursion, and visualizers O(n) C & C++ Algorithms Compare algorithms implemented in C and C++
- Challenges
Programming Challenges
Strengthen your problem-solving skills with language-neutral challenges you can solve in Python, C++, or C#. Every submission is checked by automated tests and reviewed by AI.
- Python · C++ · C#
- Automated tests
- AI code review
- Community solutions
- 150
- Challenges
- 2
- Solutions shared
- 3
- Languages
All challenges
Search by topic, language, or difficulty.
Medium
Factory Production Time
Find the earliest time parallel machines can finish a target number of items.
No solutions yet
Easy
Count Handshakes
Count handshakes when every pair of people shakes hands once.
No solutions yet
Easy
Cart Total With Discount
Total a shopping cart and apply a discount above a threshold.
No solutions yet
Easy
DNA to RNA Transcription
Build an RNA string by replacing every DNA character with its partner.
No solutions yet
Medium
Robot Command Simulator
Move a robot using L (turn left 90 degrees), R (turn right 90 degrees), and A (advance one step).
No solutions yet
Easy
Triangle Classification
Classify three side lengths as invalid, equilateral, isosceles, or scalene.
No solutions yet
Medium
Raise a Number to a Fractional Power
Raise a positive real number to a rational exponent.
No solutions yet