- 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
Number Spiral Lookup
Find a value by row and column in an expanding number spiral.
No solutions yet
Easy
Armstrong Number
Check whether a number equals the sum of its digits raised to the digit count.
No solutions yet
Easy
Least Common Multiple
Find the smallest positive number divisible by both values.
No solutions yet
Medium
Longest Common Subsequence Length
A subsequence is formed by deleting zero or more elements while preserving the order of the remaining elements.
No solutions yet
Easy
Classify a Number by Its Divisors
Classify a positive integer as perfect, abundant, or deficient.
No solutions yet