Heap (Priority Queue)Practice heap and priority queue problems for ordering, top-k queries, scheduling, and streaming data.Start Practicing: https://leetcode.com/list/ee1sb8l6Problem NameDifficultySolution Link1046 - Last Stone WeightEasyView Solutions1337 - The K Weakest Rows in a MatrixEasyView Solutions0703 - Kth Largest Element in a StreamEasyView Solutions0347 - Top K Frequent ElementsMediumView Solutions0378 - Kth Smallest Element in a Sorted MatrixMediumN/A0215 - Kth Largest Element in an ArrayMediumView Solutions0973 - K Closest Points to OriginMediumView Solutions1642 - Furthest Building You Can ReachMediumN/A1167 - Minimum Cost to Connect SticksMediumN/A0253 - Meeting Rooms IIMediumN/A0295 - Find Median from Data StreamHardView SolutionsData Structure (Basic)A beginner-friendly study plan for arrays, strings, linked lists, stacks, queues, and trees.BacktrackingPractice recursive search problems that build candidates, backtrack choices, and explore combinations.