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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
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150
Challenges
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150 challenges
Medium

Digital Root

Sum the digits repeatedly until one digit remains.

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

Smallest Digit

Find the smallest decimal digit of a positive integer.

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

Count Digits

Count the decimal digits of a positive integer.

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

Sum of Digits

Add up the decimal digits of a positive integer.

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

Square a Number

Multiply an integer by itself.

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

Reverse a Number

Reverse the decimal digits of a positive integer.

Beginner
Python C++ C#
0 solved
No solutions yet