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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
Learning path
150
Challenges
2
Solutions shared
3
Languages

All challenges

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8 challenges
Easy

Halve Until One

Count how many halvings bring a number down to 1.

BeginnerLearning-pathLoops
Python C++ C#
0 solved
No solutions yet
Easy

Sum of Odd Numbers

Add every odd number up to a limit.

BeginnerLearning-pathLoops
Python C++ C#
0 solved
No solutions yet
Easy

Power by Repeated Multiplication

Raise a number to a power with a loop.

BeginnerLearning-pathLoops
Python C++ C#
0 solved
No solutions yet
Easy

Countdown to Liftoff

Count down from a number and end with Liftoff!

BeginnerLearning-pathLoops
Python C++ C#
0 solved
No solutions yet
Easy

Fibonacci Number

Return the n-th Fibonacci number.

BeginnerLoopsSequencesStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Multiplication Table Row

List the first multiples of a number.

BeginnerLearning-pathLoops
Python C++ C#
0 solved
No solutions yet
Easy

Flatten a 2D Array

Combine the rows of a 2D integer array into one array.

ArraysLoops
Python C++ C#
0 solved
No solutions yet
Easy

Prime Number Check

Decide whether a number is prime.

BeginnerLoopsNumbersStudent-beginner
Python C++ C#
0 solved
No solutions yet