- 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
Shortest Weighted Routes
Find the minimum total route cost from city 1 to each city.
No solutions yet
Easy
Count Pairs With a Sum
Count pairs of positions whose values add up to a target.
No solutions yet
Medium
Largest Prime Factor
Find the largest prime that divides a positive integer.
No solutions yet
Hard
Find Many Patterns in Text
For each requested pattern, decide whether it appears as a contiguous substring anywhere in the shared text.
No solutions yet
Medium
List Primes With a Sieve
Find primes up to a limit by marking composite multiples.
No solutions yet
Easy
Distance Between Points
Compute the straight-line distance between two points.
No solutions yet
Medium
Right-Triangle Product
Find the largest side product of an integer right triangle with a given perimeter.
No solutions yet
Hard
Shortest Delivery Tour
Visit every city once and return home as cheaply as possible.
No solutions yet