Скачать с ютуб Next Greater Element in Circular Array | GfG POTD | 07-07-25 | GfG Problem of the day| GeeksforGeeks в хорошем качестве

Next Greater Element in Circular Array | GfG POTD | 07-07-25 | GfG Problem of the day| GeeksforGeeks

Today’s GfG POTD: Next Greater Element in Circular Array GfG Link → https://www.geeksforgeeks.org/problem... Code → https://github.com/imnilesh18/GfG-POT... ⏱ Video Chapters 00:00 - Introduction 00:14 - Problem Statement 01:28 - Brute‑Force (O(n²)) Approach & Intuition 02:30 - Full Dry‑Run of Brute‑Force 05:40 - Brute‑Force Code 06:43 - Optimized Monotonic Stack (O(n)) Approach & Intuition 09:14 - Dry‑Run of Stack Approach 19:47 - Stack‑Based Code 23: - Time & Space Complexity 🔑 Primary Keywords NextGreaterElement, CircularArray, GfGPOTD, LeetGeek, GeekStreak2025, BruteForce, MonotonicStack, StackApproach, ArrayAlgorithms, CompetitiveProgramming, CodingInterviewPrep, DataStructures, AlgorithmDesign, ProblemOfTheDay, DailyCodingChallenge, CPlusPlus, Java, TimeComplexity, SpaceComplexity, DryRun, CodeWalkthrough, CircularTraversal, InterviewQuestions, CodingTutorial, SoftwareEngineering, TechEducation, EfficientAlgorithms, InterviewPrep, OptimizationPatterns 🧾 Problem Statement Given a circular integer array arr[], find the next greater element (NGE) for each element. The NGE of arr[i] is the first element greater than arr[i] when traversing circularly; if none exists, return -1. Constraints 1 ≤ n ≤ 10⁵ 0 ≤ arr[i] ≤ 10⁶ 📊 Example Inputs & Outputs Example 1 Input: [1, 3, 2, 4] → Output: [3, 4, 4, -1] Example 2 Input: [0, 2, 3, 1, 1] → Output: [2, 3, -1, 2, 2] 🧠 What You’ll Learn Brute‑Force O(n²) circular scan method Full dry‑run walkthrough with modulo indexing Clean C++ & Java implementations of brute‑force Optimized O(n) monotonic‑stack approach Dry‑run showing how the stack “resolves” waiting indices Code walkthrough for stack solution in both languages Precise time & space complexity analysis Edge‑case handling and best practices for circular problems 📂 Resources & Code GfG Problem Statement → https://www.geeksforgeeks.org/problem... GitHub Solutions (C++ & Java) → https://github.com/imnilesh18/GfG-POT... Full Repository → https://github.com/imnilesh18/GfG-POTD 🚀 Why Watch? Master a classic “next greater” problem with circular twists. Compare the naïve brute‑force scan to an elegant O(n) stack‑based solution, complete with full dry‑runs and dual‑language code walkthroughs. Level up your DSA skills and ace your next interview question! 👍 If this video helped you, please Like, drop your questions or feedback below, and Subscribe to LeetGeek for daily GfG POTD tutorials! 🔖 Tags #NextGreaterElement #CircularArray #GfGPOTD #LeetGeek #GeekStreak2025 #BruteForce #MonotonicStack #StackApproach #ArrayAlgorithms #CompetitiveProgramming #CodingInterviewPrep #DataStructures #AlgorithmDesign #ProblemOfTheDay #DailyCodingChallenge #CPlusPlus #Java #TimeComplexity #SpaceComplexity #DryRun #CodeWalkthrough #CircularTraversal #InterviewQuestions #CodingTutorial #SoftwareEngineering #TechEducation #EfficientAlgorithms #InterviewPrep #OptimizationPatterns #Tutorial #VisualDryRun #CleanCode #StepByStep #EdgeCaseHandling #PerformanceOptimization #LearnWithExamples #SubscribeNow #CodingChallenges #ProblemSolving #StackPattern #CodingPatterns #VideoTutorial #YouTubeTutorial #NextGreaterClassic #ProgrammingTutorial #CodeAlong #TechTips #AlgorithmTutorial #CodingTips #GeekForGeeksTutorial #DSA #DSAinCpp #DSAinJava #SoftwareDev #AlgorithmPatterns #DataStructuresAndAlgorithms #GeekCommunity