Leetcode 3559 | Number of Ways to Assign Edge Weights II | Binary Lifting + Maths | Hard
🚀 Leetcode 3559 - Number of Ways to Assign Edge Weights II | Hard In this video, we solve Leetcode 3559 and build the solution step by step using mathematical observations and Binary Lifting. 📌 What You'll Learn: ✅ Problem Understanding ✅ Key Observations & Intuition ✅ Why Binary Lifting is Needed ✅ LCA (Lowest Common Ancestor) Concept ✅ Mathematical Derivation of the Formula ✅ Efficient Query Processing ✅ Live Coding in C++ ✅ Time & Space Complexity Analysis 💡 This problem combines Tree Algorithms, Binary Lifting, and Mathematics. The main challenge is understanding how to efficiently process path-related information and derive the final answer using mathematical reasoning. 📚 Concepts Covered: • Trees • DFS • Binary Lifting • Lowest Common Ancestor (LCA) • Graph Theory • Mathematics • Modular Arithmetic • Competitive Programming ⏱ Complexity: • Preprocessing: O(n log n) • Query Processing: O(log n) • Space Complexity: O(n log n) 🔥 If you found this explanation helpful, consider subscribing for more: • Leetcode Solutions • Competitive Programming • Graph Theory • Dynamic Programming • System Design • Interview Preparation 💻 Language Used: C++ #leetcode #leetcode3559 #binarylifting #lca #graphs #trees #dfs #cpp #competitiveprogramming #datastructures #algorithms#leetcodepotd #dsa #coding #leetcodemedium #codinginterview #hindi #india #coding #helpajobseeker #easyrecipes #leetcode #leetcodequestionandanswers #leetcodesolution #leetcodedailychallenge#leetcodequestions #leetcodechallenge #hindi #india #hindiexplanation #codeistory #codestor #codestory#codestory #code #hindiexplained #easyexplaination #interview#interviewtips #interviewpreparation #interview_ds_algo #hinglish #github #design #data #google #video #instagram #facebook
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