Beginner Challenges¶

15 challenges covering core Python fundamentals: variables, strings, lists, loops, conditionals, and basic algorithms.

No imports are needed for any of these challenges. Every solution can be written with built-in Python features.

Challenge List¶

#	Challenge	Concepts	Time
01	Swap Variables	Variables, tuple unpacking	10 min
02	FizzBuzz	Loops, conditionals, modulo	15 min
03	Reverse String	Strings, loops, iteration	15 min
04	Count Vowels	Strings, loops, membership	10 min
05	Palindrome Check	Strings, two-pointer logic	15 min
06	Sum of Digits	Integers, modulo, floor division	10 min
07	Find Max	Lists, iteration, comparison	10 min
08	Remove Duplicates	Lists, sets, order preservation	15 min
09	Word Frequency	Strings, dictionaries, splitting	20 min
10	Caesar Cipher	Strings, chr/ord, modular math	25 min
11	Flatten List	Recursion, lists, isinstance	25 min
12	Matrix Transpose	Nested lists, 2D indexing	20 min
13	Binary Search	Algorithms, while loops, indexing	25 min
14	Merge Sorted Lists	Two-pointer technique, lists	20 min
15	Anagram Check	Strings, dictionaries, sorting	15 min

Pick challenge 01 and work through them in order. Each builds on skills from the previous ones.