What is DSA? | Time & Space Complexity with C++ Basics | Big-O | LC 136, 1480, 1929 | DSA 360: EP 01

Kickstart your DSA journey with Day 1 of this complete Data Structures & Algorithms course in C++! In this lecture, you’ll master C++ basics for DSA including input/output, loops, arrays, vectors, and STL, followed by a deep dive into Time and Space Complexity, Big-O notation, and best, average, worst case analysis. Learn how to identify O(1), O(n), O(log n) patterns and apply them by solving beginner-friendly LeetCode problems like Running Sum, Concatenation of Array, and Single Number. This video is perfect for beginners preparing for coding interviews, placements, and competitive programming. Start building strong fundamentals and move one step closer to becoming interview-ready!

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Welcome to the DSA 360 Course – your complete roadmap to master Data Structures and Algorithms in just 60 days! In this course, you’ll go from beginner to interview-ready with a structured plan covering everything from basics like arrays and strings to advanced topics like dynamic programming, graphs, and system-level problem solving. With daily lectures, coding practice, and carefully selected LeetCode questions, this course is designed to build strong problem-solving skills and help you crack top tech interviews. Whether you're a student, beginner, or preparing for placements, this is your one-stop destination to learn, practice, and master DSA efficiently.

📚 Links & Resources for the video:
-- Live Tracker for course : https://theshivanshvasu.com/courses/master-dsa-360-series
-- Community Links : https://linktr.ee/shivanshvasu
-- Telegram Channel (NOTES, Daily Quizzes & Doubts) : https://t.me/shivanshvasu
-- Complete Playlist of this course : https://www.youtube.com/playlist?list=PLFu6kWRx3ksP2pvAJ5WguXhWsJZkzLiit

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Master DSA in 60 Days – Complete DSA 360 Roadmap
Welcome to the ultimate Data Structures and Algorithms course designed to take you from beginner to interview-ready with a structured, practical, and pattern-based approach.

📌 What you will learn:
📊 Complete Data Structures and Algorithms from scratch
🧠 Strong focus on problem-solving patterns
⚡ Master LeetCode-style interview questions
📈 Deep understanding of Time and Space Complexity
🔁 Core concepts of Recursion, Dynamic Programming, Graphs, Trees, and more

🗓️ Course structure (60 days roadmap):
🟢 Phase 1: Foundations (Arrays, Strings, Sorting, Recursion, Bit Manipulation)
🔵 Phase 2: Core DSA (Linked List, Stack, Queue, Trees, Heap, Greedy)
🟣 Phase 3: Advanced Topics (Dynamic Programming, Graphs, Backtracking, Tries, MST, Shortest Path)
🔴 Phase 4: Interview Preparation (Hard Problems, Company Questions, Mock Interviews)

💻 What makes this course unique:
✅ 240+ structured tasks
📚 Daily Lecture + Code + Practice format
🎯 Carefully selected LeetCode problems
📈 Beginner to Advanced to Interview-level coverage
🔁 Revision phases and mock interviews included
🏢 Real company-tagged questions (Google, Amazon, Meta, etc.)

🎯 Who is this for:
👨‍💻 Beginners starting DSA
🎓 College students preparing for placements
💼 Working professionals switching jobs
🚀 Anyone targeting product-based companies

📚 Topics covered:
Arrays, Strings, Binary Search, Recursion, Backtracking
Linked List, Stack, Queue, Sliding Window, Hashing
Trees, BST, Heap, Trie, Greedy
Dynamic Programming (1D, 2D, Knapsack)
Graphs (BFS, DFS, Dijkstra, MST, DSU)
Advanced patterns and system design basics

🔗 RESOURCES:
📍System Design Complete Mastery Course : https://www.youtube.com/playlist?list=PLFu6kWRx3ksPc0yqMswJD5PGECAbATbXF
📍Master DSA 360 Complete Course : https://www.youtube.com/playlist?list=PLFu6kWRx3ksP2pvAJ5WguXhWsJZkzLiit
📍MERN Stack Course: https://www.youtube.com/playlist?list=PLFu6kWRx3ksPfECMh2kfFdJsQCeuyvkbX
📍ELEVATE - Web Dev Complete Course : https://www.youtube.com/playlist?list=PLFu6kWRx3ksMIQMrYq8naQMBc2TNuE9lc
📍How Internet Works: https://www.youtube.com/playlist?list=PLFu6kWRx3ksM4OjqjGmuCIYkaqgqpoYOV
📍Full Stack Mastery Course: https://www.youtube.com/playlist?list=PLFu6kWRx3ksOcbWGmmVF_x5PIfJeU1RCA
📍Web Dev Techs: https://www.youtube.com/playlist?list=PLFu6kWRx3ksMytJ-SGUEjJ_hDJUSKFRPX
📍React Project Series: https://www.youtube.com/playlist?list=PLFu6kWRx3ksP3xAKmmYd_t6R2u4khfz1W

🔖 Tags / Topics Covered:
#DSA #DataStructures #Algorithms #CodingInterview #LeetCode #FAANG #Programming #Developer #PlacementPreparation #LearnToCode
DSA, data structures, algorithms, dsa course, learn dsa, dsa roadmap, coding interview preparation, leetcode problems, coding practice, programming, problem solving

🌐 Visit for Any Discussion, Collaboration or Business: https://theshivanshvasu.com/

Видео What is DSA? | Time & Space Complexity with C++ Basics | Big-O | LC 136, 1480, 1929 | DSA 360: EP 01 канала Dev. Shivansh Vasu