describe the 2-approximation algorithm's Python source code. The majority of the code is concerned with removing the randomly chosen edge and its surrounding edges from the graph. The incidence matrix B(G) from the graph G is the input to the procedure VC Approx. Every iteration, the endpoints of a chosen edge are added to the list V C and the unmarked edges are kept in the list edges. We input the graph's incidence matrix B and then iterate through the rows of B to find edges that are near the matched edge. The main while loop iterates until this list is empty after each found edge is removed from the list edges.

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Heap Sort

A Heap is a type of data structure that is built on trees. It's a binary tree that's virtually complete. Except for the very bottom level, all levels of the tree must be filled in a heap. The last (bottom) level should be filled from left to right. The heap data structure is used for the efficient implementation of priority queues.Heap can be of two types: