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Student beginner coding challenges

Practise student beginner with 28 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 · 27 Medium · 1

Skills you'll practise: CountingModuloSingle passString splittingTracking a maximumTwo pointersAccumulatorsArithmetic seriesArray indexingBit manipulationCapitalizationCharacter checks
  • 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
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28 challenges
Easy

Count Vowels

Count the vowels in a piece of text.

You'll learn Character checksSet membership
BeginnerStringsStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Second Largest Value

Find the second largest distinct value.

You'll learn Two trackersDistinct values
ArraysBeginnerStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Array Maximum

Find the largest value in a list.

You'll learn Tracking a maximumSingle pass
ArraysBeginnerStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Array Minimum

Find the smallest value in a list.

You'll learn Tracking a minimumSingle pass
ArraysBeginnerStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Longest Word

Find the longest word in a sentence.

You'll learn String splittingTracking a maximum
BeginnerStringsStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Count Words

Count the words in a sentence.

You'll learn String splittingWhitespace
BeginnerStringsStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Array Average

Compute the average of a list of numbers.

You'll learn Sum and countFloat division
ArraysBeginnerStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Move Zeroes

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

You'll learn Two pointersIn-place updates
ArraysBeginnerStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Rotate Array

Rotate a list to the right by some steps.

You'll learn Array indexingModulo
ArraysBeginnerStudent-beginner
Python C++ C#
0 solved
No solutions yet
Easy

Sum an Array

Add up all values in a list.

You'll learn AccumulatorsEmpty-list cases
ArraysBeginnerStudent-beginner
Python C++ C#
0 solved
No solutions yet

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