Learn Python Language

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Welcome to Learn Python Language Read, Practice, Code!

This repository is part of My Python learning journey, created to help beginners understand Python from the ground up. Whether you're just starting or revising core concepts, this repo is packed with helpful examples, exercises, and mini-projects.

🧠 Inspired by continuous practice and real-world application.

What You'll Learn

Sr.	Topic	Link
0	Python Setup & Installation	View
1	Introduction to Python	View
2	Operators in Python	View
3	Variables & Data Types	View
4	String in Python	View
5	Lists in Python	View
6	Tuples in Python	View
7	Set in Python	View
8	Dictionary in Python	View
9	Conditional Statements in Python	View
10	Loops in Python	View
11	Function in Python	View
12	Recursion in Python	View
13	File Input and Output (I/O) in Python	View
14	OOPS in Python	View
15	Inprotant Questions	View
16	Conditional Statements & Loops Questions	View
17	Interview Questions	View
18	Project	View
19	Setup VSCode	View
20	How to Contribute	View

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📘 DSA Practice Sheets in Python

Data Structures and Algorithms (DSA) using Python. Ideal for beginners, and self-taught developers preparing for coding interviews.

Levels Overview

• 🟢 Beginner
• 🟡 Intermediate
• 🔴 Advanced

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🟢 Beginner Level

🔹 Arrays & Strings

• Reverse an array
• Find the maximum/minimum element
• Remove duplicates from a list
• Rotate array by k positions
• Check if a string is a palindrome
• Count vowels and consonants
• Implement Python’s split() manually

🔹 Basic Math

• Prime number check
• GCD and LCM of two numbers
• Factorial using recursion
• Fibonacci series
• Palindromic number check

🔹 Searching & Sorting

• Linear search
• Binary search
• Bubble sort
• Selection sort
• Insertion sort

🟡 Intermediate Level

🔹 Linked Lists

• Reverse a linked list
• Detect a cycle in a linked list
• Merge two sorted linked lists
• Find middle of linked list

🔹 Stack & Queue

• Implement stack using list or deque
• Valid parentheses (LeetCode #20)
• Implement queue using two stacks
• Next Greater Element (LeetCode #496)

🔹 Hashing & Dictionary

• Two Sum problem (LeetCode #1)
• Group anagrams (LeetCode #49)
• Longest substring without repeating characters

🔹 Recursion & Backtracking

• Generate all subsets of a list
• Permutations of a list
• Sudoku solver
• N-Queens problem

🔴 Advanced Level

🔹 Trees & Binary Trees

• Inorder, Preorder, Postorder traversal
• Check if a tree is balanced
• Lowest common ancestor
• Serialize and deserialize a tree

🔹 Heaps & Priority Queues

• Kth largest element (LeetCode #215)
• Merge k sorted arrays
• Top K frequent elements

🔹 Graphs

• BFS and DFS traversal
• Detect cycle in a graph
• Dijkstra's algorithm
• Topological sorting

🔹 Dynamic Programming

• 0/1 Knapsack
• Longest Common Subsequence
• Longest Increasing Subsequence
• Coin Change problem

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📄 Curated Practice Sheets (External)

Sheet	Type	Link
Striver's SDE Sheet	Interview-focused	takeuforward.org
Love Babbar’s 450 DSA Sheet	Comprehensive	450dsa.com
Fraz’s 200 DSA Sheet	LeetCode focused	GitHub
LeetCode Top 100	Must-do	LeetCode
GFG DSA Sheet	Topic-wise	GFG

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Platforms to Practice

• LeetCode
• HackerRank
• GeeksforGeeks Practice
• Codeforces

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Contributing

If you are interested in writing code to fix issues, please see How to Contribute in the doc.

Author