Two Pointers Made Simple | Day 3 of 30 Days LeetCode DSA Challenge скачать в хорошем качестве

Two Pointers Made Simple | Day 3 of 30 Days LeetCode DSA Challenge

Welcome to Day 3 of the 30 Days DSA Challenge! Every day, we solve one core DSA pattern LIVE using real LeetCode problems. Today’s topic is Two Pointers, one of the most common and powerful patterns in coding interviews. 🔥 What We Will Cover Today In this session, you will learn: 1️⃣ What is the Two Pointers Technique? Left & Right pointer Fast & Slow pointer Inward shrinking pointers Outward expanding pointers 2️⃣ When to Use Two Pointers? Sorted arrays Finding pairs or triplets Removing duplicates Checking palindromes Linked list fast-slow tricks 3️⃣ Essential Patterns We’ll Solve ✔ Pair Sum / Two Sum (Sorted) ✔ Remove Duplicates from Sorted Array ✔ Move Zeroes ✔ Container With Most Water ✔ Palindrome Check ✔ Linked List Cycle detection (Floyd’s Algo) 4️⃣ How to Identify a Two Pointer Problem Instantly If sorting helps If you need O(n) time If brute force uses nested loops If shrinking/expanding windows are needed 5️⃣ Live LeetCode Examples + Step-by-Step Logic We will solve common LeetCode patterns LIVE, explain the intuition, and derive optimal solutions. 👨‍💻 Who Should Watch? This session is perfect if you: Struggle to identify patterns in problems Want to crack product-based interviews Want strong DSA intuition Are learning DSA from scratch Want daily accountability and consistency 🧠 About the 30-Day Challenge 📅 30 days 📚 30 core DSA patterns 💻 LeetCode standard questions 🎯 Focus on intuition + implementation 🔥 Daily live coding Join the challenge. Stay consistent. Level up your problem-solving skills 🚀 #twopointers #dsa #LeetCodeLive #codingchallenge #30daysofcode #interviewpreparation #programming #techlive #softwareengineering #competitiveprogramming #learntocode