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Beginner coding challenges
Practise beginner with 95 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 · 89 Medium · 6
Skills you'll practise: CountingArithmeticDigit extractionFormulasListsString splitting2D listsConditionsDivisibilityLoopsModuloSingle pass
- Python · C++ · C#
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- AI code review
- Community solutions
- 226
- Challenges
- 5
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- 3
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All challenges
Search by topic, language, or difficulty.
Easy
Palindrome String
Check whether text reads the same forwards and backwards.
You'll learn
Two pointersEarly exit
No solutions yet
Easy
Multiplication Table Row
List the first multiples of a number.
You'll learn
MultiplesBuilding lists
No solutions yet
Easy
Every Other Character
Keep the characters at even positions.
You'll learn
String indexingSteps
No solutions yet
Easy
Title Case
Capitalize the first letter of every word.
You'll learn
String methodsCapitalization
No solutions yet
Easy
Countdown to Liftoff
Count down from a number and end with Liftoff!
You'll learn
Reverse loopsLists
No solutions yet
Easy
Anagram Check
Check whether two phrases use the same letters.
You'll learn
SortingFrequency counts
No solutions yet
Easy
Reverse a String
Return the characters of a string in reverse order.
You'll learn
Reverse iterationSlicing
No solutions yet
Easy
Cart Total With Discount
Total a shopping cart and apply a discount above a threshold.
You'll learn
ListsDiscount rules
No solutions yet
Easy
Body Mass Index
Compute BMI from weight and height.
You'll learn
FormulasFloating point
No solutions yet
Easy
Swap First and Last
Exchange the first and last items of a list.
You'll learn
List indexingSwapping
No solutions yet
Easy
Letter Grade
Turn a test score into a letter grade.
You'll learn
if/elif chainsRanges
No solutions yet
Easy
Array Maximum
Find the largest value in a list.
You'll learn
Tracking a maximumSingle pass
No solutions yet
Easy
Count Positive Numbers
Count the values greater than zero in a list.
You'll learn
ListsCounting
No solutions yet
Easy
Largest of Three
Pick the largest of three numbers without a built-in max.
You'll learn
ComparisonsCombining conditions
No solutions yet
Easy
Absolute Value Without abs
Compute an absolute value with a condition.
You'll learn
NegationNo built-ins
No solutions yet
Easy
First Negative Index
Find where the first negative number appears.
You'll learn
Linear searchEarly return
No solutions yet
Easy
Array Minimum
Find the smallest value in a list.
You'll learn
Tracking a minimumSingle pass
No solutions yet
Easy
Second Largest Value
Find the second largest distinct value.
You'll learn
Two trackersDistinct values
No solutions yet
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