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Sets coding challenges

Practise sets with 2 coding challenges, from easy to hard. Every challenge runs in your browser with instant tests, an AI review of your code and community solutions to compare.

Easy · 2

Skills you'll practise: Case normalizationLetter setsOrder preservationSeen-value tracking
  • Python · C++ · C#
  • Automated tests
  • AI code review
  • Community solutions
Programming
Programming fundamentalsFrom variables to recursion, for beginners
AI and machine learning
AI Learning HubNeural networks, ML and LLMs from scratch Neural networks from scratchNeurons, backpropagation and optimizers Machine learning from scratchRegression, classification and clustering Transformers and LLMs from scratchTokenizers, attention and text generation Classical AI and reinforcement learningSearch, games and reinforcement learning
226
Challenges
2
Solutions shared
3
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2 challenges
Easy

Remove Duplicates

Keep only the first occurrence of each value.

You'll learn Seen-value trackingOrder preservation
ArraysBeginnerSetsStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Pangram Check

A pangram contains every English letter at least once.

You'll learn Letter setsCase normalization
SetsStrings
Python C++ C#
0 solved
No solutions yet

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