Two Pointer Technique (DSA using Java) | Two Sum Problem | DSA Placement Course

Published: 28 September 2025
on channel: Smart Programming

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DSA Coding Interview Patterns: Two Pointer Technique & Two Sum Problem 💻

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💡 In this video, we dive deep into the Two Pointer Technique in Data Structures and Algorithms (DSA) and solve the Two Sum Problem using the brute force approach. This is perfect for beginners and anyone preparing for coding interviews or competitive programming.

💡 We also discuss patterns that help in cracking DSA rounds, placement tests, and FAANG-level interviews. By watching this, you'll learn how to approach array problems, find duplicates, and tackle pair sum or pair difference problems effectively.

✅ What You’ll Learn in This Video:
➜ What is the Two Pointer Technique and how to apply it.
➜ Step-by-step brute force solution for Two Sum problem.
➜ How to analyze array problems efficiently.
➜ Understanding coding patterns to crack interviews faster.

📌 Who Should Watch:
➜ Beginners in DSA
➜ Students preparing for coding interviews
➜ Anyone aiming for placement tests or FAANG interviews
➜ If you find this video helpful, don’t forget to like, comment, and subscribe for more coding patterns and DSA tutorials!

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⏱️ Timestamps / Video Chapters:
00:00 - Introduction
00:48 - Two Pointer in Java DSA
03:57 - Two Sum Problem using Brute Force (Not Efficient)
09:36 - Problem with Brute Force Algorithm - Time Complexity
10:21 - Two Sum Problem (Efficient)
17:16 - DSA Two Sum Problem Practical Coding
25:51 - DSA Free Notes

✨ This lecture is part of a larger series:
➜ 2 Sum Problem | 2 types of the same problem for Interviews | Brute-Better-Optimal
➜ Target Sum | Intermediate Coding Practice in Arrays | Java and DSA Foundation
➜ Two Sum | Find Duplicate | Find Repeating & Missing Values | Hashing Problems
➜ LeetCode Question with Solution | Two Sum Problem | Placement Series
➜ Two Pointer Technique | Two sum Problem in Data Structure
➜ Two Pointers || 25 DSA Patterns || New & Easy way to Master DSA || Crack DSA round
➜ Two Pointer in Java DSA | TWO SUM | Pair Sum | Pair Difference | Move 0 to end
➜ Two Sum (Leetcode 1) - Easy (Hindi)
➜ LeetCode in Java | Problem Solving in Arrays : Easy Question | Two Sum Problem
➜ Two Pointers in 7 minutes | LeetCode Pattern
➜ Coding Interview Patterns - Two Pointers
➜ 8 patterns to solve 80% Leetcode problems
➜ Introduction to Sliding Window and 2 Pointers | Templates | Patterns
➜ Two Pointer Algorithm | Two Sum Problem | Solve DS Problems in O(N) Time

#TwoPointers #TwoSumProblem #DSA #CodingInterview #LeetCode #JavaDSA #ArrayProblems #InterviewPrep #CodingPatterns #DSALecture

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