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Learning path coding challenges

Practise learning path with 40 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 · 35 Medium · 5

Skills you'll practise: Lists2D listsCountingArithmeticFormulasAccumulatorsAge rangesAveragesAvoiding double countsBase casesBoolean flagsBoundary values
  • 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
5
Solutions shared
3
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40 challenges
Easy

Initials From a Name

Build uppercase initials from a full name.

You'll learn String splittingUppercase
BeginnerLearning-pathStrings
Python C++ C#
0 solved
No solutions yet
Easy

Count Uppercase Letters

Count the capital letters in a text.

You'll learn Character checksCounting
BeginnerLearning-pathStrings
Python C++ C#
0 solved
No solutions yet
Easy

Replace Spaces With Dashes

Turn spaces into dashes to make a URL-style slug.

You'll learn String buildingCharacter replacement
BeginnerLearning-pathStrings
Python C++ C#
0 solved
No solutions yet
Easy

Running Sum

Replace each value with the total so far.

You'll learn Prefix sumsLists
ArraysBeginnerLearning-path
Python C++ C#
0 solved
No solutions yet

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