🐍 Python Beginner Exercises – Focus: Collections, If, While, For

🔢 Lists

• Print all elements of a list using a for loop

• Find the sum of numbers in a list

• Find the largest number in a list

• Count even and odd numbers in a list

• Replace all negative numbers with 0

• Remove duplicates from a list

• Find all numbers divisible by 3 and 5 in a list

• Reverse a list without using .reverse()

• Create a list of squares of numbers from 1 to 10

• Search for an element in a list using a loop

🔤 Strings (using collections of characters)

• Count vowels in a string

• Reverse a string using a loop

• Check if a string is a palindrome

• Remove all spaces from a string

• Count how many times each character appears (use dictionary)

• Replace vowels with * in a string

• Check if two strings are anagrams (basic sorting logic)

• Count words in a sentence

• Find the most frequent character in a string

• Capitalize the first letter of each word (no built-ins)

📦 Dictionaries

• Count occurrences of elements in a list (frequency count)

• Merge two dictionaries

• Find the key with the highest value

• Print keys and values using a for loop

• Swap keys and values

• Sort dictionary by values

• Remove a key from dictionary using a loop

• Check if a key exists (with if)

• Create a dictionary from two lists (zip-like logic)

• Group words by their first letter into a dictionary

🟰 Sets & Tuples

• Find common elements in two lists using sets

• Get all unique values from a list

• Remove duplicates from a list using set

• Convert a tuple to list and back

• Count how many times each item appears in a tuple

🔁 While Loops

• Print numbers from 1 to 10 using while

• Keep accepting user input until they type ‘exit’

• Sum digits of a number using while

• Factorial using while

• Basic menu system (1: add, 2: view, 3: quit)