Master Binary Search in DSA | Every Pattern You Need for Coding Interviews
Binary Search is one of the most frequently asked topics in coding interviews at top tech companies like Google, Amazon, Microsoft, Meta, and Netflix. In this video, you'll learn not only the classic Binary Search algorithm but also the advanced patterns that help solve real interview problems efficiently.
We'll cover searching in sorted arrays, finding the first and last occurrence of an element, searching in rotated sorted arrays, binary search on the answer, and finding peak elements. You'll also understand how Binary Search reduces time complexity from O(n) to O(log n) and how to recognize problems where Binary Search can be applied.
Whether you're preparing for coding interviews, placements, competitive programming, or strengthening your DSA fundamentals, this lesson will give you a complete understanding of Binary Search.
📚 What You'll Learn
✅ Introduction to Binary Search
✅ Why Binary Search is Fast (O(log n))
✅ Classic Binary Search
✅ First Occurrence (Left Boundary Search)
✅ Last Occurrence (Right Boundary Search)
✅ Binary Search Template
✅ Rotated Sorted Array
✅ Binary Search on Answer
✅ Peak Element Problem
✅ Real Interview Questions
✅ Common Mistakes
✅ Best Practices
🎯 Perfect For
DSA Beginners
Coding Interview Preparation
FAANG Interview Preparation
Software Engineering Students
Python Developers
Java Developers
C++ Developers
Competitive Programmers
College Students
Placement Preparation
🌍 Real-World Applications
Binary Search powers many real-world systems, including:
🔹 Google Search
🔹 Database Indexing
🔹 Git Bisect for Bug Detection
🔹 Load Balancing
🔹 Cloud Resource Optimization
🔹 Search Engines
🔹 Scheduling Systems
🔹 Machine Learning Optimization
📈 Why Binary Search Matters
Learning Binary Search teaches you much more than searching in arrays.
You'll learn how to:
✔ Reduce search space efficiently
✔ Identify monotonic problems
✔ Solve optimization problems
✔ Think like an interviewer
✔ Build faster algorithms
These patterns appear in hundreds of coding interview questions on LeetCode, HackerRank, Codeforces, and GeeksforGeeks.
📺 Complete DSA Course by SP Learning Labs
Learn Data Structures & Algorithms from scratch with real-world examples, interview-focused explanations, visual learning, and Python implementations.
Topics include:
📌 Arrays
📌 Strings
📌 Binary Search
📌 Linked Lists
📌 Stacks
📌 Queues
📌 Trees
📌 Graphs
📌 Dynamic Programming
📌 Greedy Algorithms
📌 Backtracking
📌 System Design
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Time stamps :
00:00 : Introduction
01:30 : Why binary search is important
02:03 : Classic Binary search
04:55 : Left Boundary Search
07:15 : Right Boundary Search
09:10 : Rotated Sorted Array
12:23 : Binary Search on Answer
15:20 : Peak Element
17:25 : Real World Examples
17:36 : Best Practices
18:17 : Common mistakes
18:53 : Interview Questions
19:38: Racap and Extro