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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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28 challenges
Easy

Greatest Common Divisor

Find the largest number that divides both values.

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

Power of Two

Check whether a number is a power of two.

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

First Unique Character

Find the first character that appears only once.

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

Count Words

Count the words in a sentence.

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

Move Zeroes

Move every zero to the end while keeping the other order.

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

Longest Word

Find the longest word in a sentence.

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

Count Vowels

Count the vowels in a piece of text.

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

Anagram Check

Check whether two phrases use the same letters.

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

Palindrome String

Check whether text reads the same forwards and backwards.

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

Least Common Multiple

Find the smallest positive number divisible by both values.

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