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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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40 challenges
Easy

Simple Interest

Find the total amount after simple interest.

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

Count Positive Numbers

Count the values greater than zero in a list.

ArraysBeginnerLearning-path
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

Ticket Price by Age

Choose a cinema ticket price from the visitor's age.

BeginnerConditionsLearning-path
Python C++ C#
0 solved
No solutions yet
Easy

Running Sum

Replace each value with the total so far.

ArraysBeginnerLearning-path
Python C++ C#
0 solved
No solutions yet
Easy

Rectangle Perimeter

Compute the perimeter of a rectangle from its sides.

BeginnerLearning-pathVariables
Python C++ C#
1 solved
View solutions (1)
Easy

Largest of Three

Pick the largest of three numbers without a built-in max.

BeginnerConditionsLearning-path
Python C++ C#
0 solved
No solutions yet
Easy

Count Uppercase Letters

Count the capital letters in a text.

BeginnerLearning-pathStrings
Python C++ C#
0 solved
No solutions yet
Medium

Recursive Palindrome

Check a palindrome recursively, ignoring case and punctuation.

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

Initials From a Name

Build uppercase initials from a full name.

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

Letter Grade

Turn a test score into a letter grade.

BeginnerConditionsLearning-path
Python C++ C#
0 solved
No solutions yet
Easy

Body Mass Index

Compute BMI from weight and height.

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

Absolute Value Without abs

Compute an absolute value with a condition.

BeginnerConditionsLearning-path
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
Medium

Recursive Power

Compute a power recursively by halving the exponent.

BeginnerLearning-pathRecursion
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

Countdown to Liftoff

Count down from a number and end with Liftoff!

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

Tic-Tac-Toe Winner

Decide the result of a tic-tac-toe board.

BeginnerConditionsGridsLearning-path
Python C++ C#
0 solved
No solutions yet