Sort an Array - https://leetcode.com/problems/sort-an-array/description/

Solution - https://leetcode.com/problems/sort-an-array/solutions/5130465/readable-and-moduler-heap-implmentation/ 

Minimum Cost of ropes - https://www.geeksforgeeks.org/problems/minimum-cost-of-ropes-1587115620/1

Kth Largest Element in an Array - https://leetcode.com/problems/kth-largest-element-in-an-array/description/

Solution - https://leetcode.com/problems/kth-largest-element-in-an-array/solutions/5130478/heap-to-maintain-top-k-elements/

Top K Frequent Elements - https://leetcode.com/problems/top-k-frequent-elements/description/

Solution - https://leetcode.com/problems/top-k-frequent-elements/submissions/1860404256