Write an algorithm to perform a range query(with rectangular shape,Q) in a quadtree.(Please write comments to explain the meaning of your pseudo-code).
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- Which of the following algorithms are useful for processing queries on trees? A. Centroid Decomposition. B. Heavy Light Decomposition. C. Both (A) and (B). D. Neither (A) nor (B).Discuss the concept of segment trees, which are used in range query problems. How do they utilize binary tree structures, and what are their advantages?What is depth first search and how does it work?What do the terms "find node" and "finish node" mean?
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- needs you to give the three traversals of a tree, including pre-order, in-order and post-order traversals. Review these three methods Please show me how to do this and explain to help me prepareAssume you have a table with restaurant names, x, y coordinates, and names. Assume that the only questions asked will be of the following nature: The query gives a location and inquires as to whether or not there is a restaurant at that location. R-tree or B-tree indexes: which is better? Why?For the following query:Map it to a query treeProvide a simplified WHERE clauseMap a query with simplified WHERE clause in the above 2) to a query treeSELECT ENAME, PNAMEFROM EMP, ASG, PROJWHERE (DUR > 12 OR RESP = "Analyst") ANDEMP.ENO = ASG.ENO AND(TITLE = "Elect. Eng."OR ASG.PNO < "P3") AND(DUR > 12 OR RESP NOT= "Analyst") ANDASG.PNO = PROJ.PNO