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👉 Implement a Maxheap/MinHeap using arrays and recursion. 👉 Sort an Array using heap. (HeapSort) 👉 Maximum of all subarrays of size k. 👉 “k” largest element in an array 👉 Kth smallest and largest element in an unsorted array 👉 Merge “K” sorted arrays. [ IMP ] 👉 Merge “K” Sorted Linked Lists [V.IMP] 👉 Merge 2 Binary Max Heaps 👉 Kth largest sum continuous subarrays 👉 Leetcode- reorganize strings