Day 41/90 |⚡Last Stone Weight + Digit Swap Parity | Heap Pattern Explained | DSA Pattern #6 скачать в хорошем качестве

Day 41/90 |⚡Last Stone Weight + Digit Swap Parity | Heap Pattern Explained | DSA Pattern #6

Telegram Channel : https://t.me/ctobhaiya_tg Instagram:   / ctobhaiya   Linkedin:   / anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a1...   Github: https://github.com/team-codebug/babua... Notes: https://github.com/team-codebug/babua... In this video, we solve two very important interview problems that teach you how to think in terms of heaps and greedy logic: 1️⃣ Last Stone Weight (Heap / Priority Queue) 2️⃣ 2231. Largest Number After Digit Swaps by Parity (Greedy + Sorting by parity) Instead of just coding, we focus on intuition, problem analysis, and why the solution works — exactly how interviewers expect you to think. 🔹 Problem 1: Last Stone Weight (Heap Intuition) You are given stones with different weights. Each turn, you smash the two heaviest stones together. This problem teaches you: Why we use a Max Heap How to repeatedly extract maximum elements efficiently How to convert min-heap to max-heap (in Java / Python) Time complexity analysis of heap-based solutions 📌 Key idea: “Whenever you repeatedly need the largest element → use a heap” 🔹 Problem 2: 2231. Largest Number After Digit Swaps by Parity You are allowed to swap digits only with the same parity (odd ↔ odd, even ↔ even). Goal: form the largest possible number. This problem teaches you: How to separate digits by parity Why greedy works here How sorting helps maximize the number How to rebuild the answer correctly 📌 Key idea: “When swaps are restricted, group elements and optimize locally” 🧠 What You’ll Learn ✅ Heap intuition with a real problem ✅ When to use PriorityQueue ✅ Greedy thinking for constrained swaps ✅ Step-by-step dry run ✅ Clean, interview-ready code ✅ Time & space complexity analysis 🎯 Why These Problems Matter These are classic interview questions asked in: FAANG interviews Product-based companies Online assessments DSA rounds for placements They help you master Heap Pattern + Greedy Pattern, two of the most important patterns in DSA. 👨‍🎓 Who Should Watch Beginners learning heaps Students preparing for interviews Anyone struggling with greedy problems DSA pattern learners 📌 Part of DSA Patterns Course 📌 Explained with intuition, not memorization If you found this helpful, LIKE 👍 | SHARE 🔁 | SUBSCRIBE 🚀 Comment your doubts — we solve together 💪 Hashtags: #LastStoneWeight #LeetCode2231 #HeapDataStructure #PriorityQueue #HeapPattern #GreedyAlgorithm #DigitSwapProblem #ParityBasedSwap #DSAPatterns #DSAForInterviews #CodingInterviewQuestions #FAANGPreparation #ProductBasedCompanies #LeetCodeProblems #DSAWithIntuition #DataStructuresAndAlgorithms #PlacementPreparation #CTOBhaiya #LearnDSA Your Queries: last stone weight leetcode last stone weight largest number after digit swaps by parity leetcode 2231 heap data structure priority queue explained heap pattern greedy algorithm dsa patterns heap interview questions parity swap problem leetcode greedy problems coding interview preparation faang dsa questions product based company dsa placement preparation data structures and algorithms learn heaps cto bhaiya CHAPTERS 00:00 - Introduction & Recap 01:10 - LeetCode 1046 - Approach 1 - Theory 10:15 - LeetCode 1046 - Approach 1 - Code 18:21 - LeetCode 1046 - Approach 2 - Theory 20:45 - LeetCode 1046 - Approach 2 - Code 28:12 - LeetCode 2231 - Approach 1 - Theory 41:32 - LeetCode 2231 - Approach 1 - Code 54:27 - LeetCode 2231 - Approach 2 - Theory 01:02:25 - LeetCode 2231 - Approach 2 - Code 01:09:25 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin:   / anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a1...   Instagram:   / ctobhaiya   Telegram Channel : https://t.me/ctobhaiya_tg ==========================