Udemy
    •  
    •  
    •  
    •  
    •  
    •  
    •  
    •  
Turn what you know into an opportunity and reach millions around the world.
Learn More
Your cart is empty.
Keep shopping
Data Structures Algorithm DSA | Python+Javascript LEETCODE
Role Play
Highest Rated
Rating: 4.6 out of 5(1,265 ratings)
93,080 students
Created byJackson Kailath
Last updated 12/2025
English

What you'll learn

  • Common Data Structures such as Arrays, Hash Table,Linked List,Binary trees,Graphs etc.
  • Real Coding Interview Questions from Google, Meta,Amazon,Netflix ,Microsoft etc.
  • Time and Space Complexity of Algorithms, Detailed Discussion of Logic to solve questions
  • Code Implementation in Javascript, Python

Coding Exercises

This course includes our updated coding exercises so you can practice your skills as you learn.

See a demo
Image of coding exercise example

Course content

26 sections326 lectures41h 16m total length
  • Welcome! How to make best use of this course2:34
  • Best Study Technique to prepare for Coding Interviews0:55
  • Day 1 Goals0:35
  • Introduction to Data Structures4:34
  • Introduction to Big O, Time Complexity14:01
  • 2 Asymptotic Analysis and Big O16:36
  • Big O Space Complexity3:50
  • Big O Logarithm5:12
  • Arrays: Data Structures Crash Course13:21
  • Set up, Using Debugger3:00
  • Coding Interview Q1: Sorted Squared Array4:46
  • Coding Exercise - Python : Sorted Squared Array
  • Coding Exercise - JS: Sorted Squared Array
  • Method 1, Big O Analysis3:05
  • JS- Code our solution4:43
  • JS - Code walkthrough and Big O analysis4:15
  • Python Code and Big O analysis3:00
  • Method 27:29
  • Javascript - Code our solution6:22
  • Javascript - Code walkthrough and Big O analysis5:16
  • PYTHON Code and Big O analysis5:48
  • Coding Interview Q2: Monotonic Array5:14
  • Coding Exercise - Python: Monotonic Array
  • Coding Exercise - JS: Monotonic Array
  • Method and Big O analysis7:17
  • Javascript - Code the solution, Big O analysis7:03
  • PYTHON - Code and Big O analysis6:11
  • Role Play( Beta) : Sorted Squarred Array

Requirements

  • Basic knowledge of Javascript or Python or any other Programming language ( things like write a loop, function etc)

Description

Student Testimonials:

  • "The teacher excels in explaining complex concepts clearly." - Liam Bailes

  • "I have just started but the quality of explanation is superb . I had seen many videos on time complexity but he explained very well."-Deepak Reddy

  • "So far, I am finding this course really helpful, and the trainer is really sorted about what he needs to teach and is completely prepared with his plan and material. I feel this is one of the best courses available in Udemy and outside to learn DSA because it is well structured and is delivering what we are looking for."-Ankur Saxena

  • "Great course. Lecturer is full of in depth knowledge and able to pass it on. Its not easy to find this out there. Thank you."-Mark Corrigan

  • "Because of this course I understand how to find complexity of the program. Teacher has explained concept in very easy manners, so that any body can understand it properly."-Amritesh Kumar Singh

  • "I really love the way you have explained it, and thanks for such a great course."- Soeng Kanel

  • "The course is a rare find for in-depth knowledge." - Mark Corrigan

  • "Well-structured and thorough preparation for DSA." - Ankur Saxena

  • "Easy to grasp concepts in a single go." - Shaik Asrar

  • "Effortless concept assimilation." - Elisha Benjamin

  • "A great foundation in DSA." - Prince Roy Sharma

  • "Simplifies understanding DSA." - Rahul

  • "Clarifies program complexity." - Amritesh Kumar Singh

  • "Clarified Big O notation for me." - Aaron Engelmann

  • "Excellent for problem-solving and reasoning." - Parth

  • "Comprehensive overview of Data Structures." - Newton

  • "Highly recommended for Tier 1 company preparation." - Dennis Paul

About the Course:

Welcome to the Coding Interview Bootcamp with a focus on Python and JavaScript!

The primary goal of this course is to prepare you for coding interviews at top tech companies. By tackling one problem at a time and understanding its solution, you'll accumulate a variety of tools and techniques for conquering any coding interview.

Daily Coding Challenges:

The course is structured around daily coding challenges. Consistent practice will equip you with the skills required for coding interviews and allow you to practice on Leetcode.

Topics Covered:

We start from the basics with Big O analysis, cover common data structures, and discuss real-life problems asked in interviews at tech giants like Google, Meta, Amazon, Netflix, Apple, and Microsoft.

For each question, we will:

  1. Discuss the optimal approach

  2. Explain time and space complexity

  3. Code the solution in JavaScript (you can follow along in your preferred language)

Additional Resources:

The course includes downloadable resources, motivational trackers, and cheat sheets.

Course Outline:

  • Day 1: Arrays, Big O, Sorted Squared Array, Monotonic Array

  • Day 2: Arrays, Rotate Array, Container with Most Water

  • Day 3: Hash Tables, Two Sum, Isomorphic Strings

  • Day 4: Recursion, Fibonacci, Power Sum

  • Day 5: Recursion, Permutations, Power Set

  • Day 6: Strings, Non-Repeating Character, Palindrome

  • Day 7: Strings, Longest Unique Substring, Group Anagrams

  • Day 8: Searching, Binary Search, Search in Rotated Sorted Array

  • Day 9: Searching, Find First and Last Position, Search in 2D Array

  • Day 10: Sorting, Bubble Sort, Insertion Sort

  • Day 11: Sorting, Selection Sort, Merge Sort

  • Day 12: Sorting, Quick Sort, Radix Sort

  • Day 13: Singly Linked Lists, Construct SLL, Delete Duplicates

  • Day 14: Singly Linked Lists, Reverse SLL, Cycle Detection

  • Day 15: Singly Linked Lists, Find Duplicate, Add 2 Numbers

  • Day 16: Doubly Linked Lists, DLL Remove Insert, DLL Remove All

  • Day 17: Stacks, Construct Stack, Reverse Polish Notation

  • Day 18: Queues, Construct Queue, Implement Queue with Stack

  • Day 19: Binary Trees, Construct BST, Traversal Techniques

  • Day 20: Binary Trees, Level Order Traversal, Left/Right View

  • Day 21: Binary Trees, Invert Tree, Diameter of Tree

  • Day 22: Binary Trees, Convert Sorted Array to BST, Validate BST

  • Day 23: Heaps, Max Heap, Min Priority Queue

  • Day 24: Graphs, BFS, DFS

  • Day 25: Graphs, Number of Connected Components, Topological Sort

We offer a full money-back guarantee for 30 days. Enroll today!

  • Jackson

Who this course is for:

  • Students who are about to graduate and trying to get into top Tech companies as software engineers
  • Self taught programmers looking for their first job
  • Experienced developers wanting to get into MAANG companies ( top tech firms)