31. Who is descendant of Node C?

32. What is the time taken for a range query for a perfectly balanced tree?
33. What is the total time spent for N-1 merges in a dynamic equivalence problem?
34. What is the time complexity for inserting a key or integer in Van Emde Boas data structure?
35. What is the use of the bin data structure?
36. Which type of tree does Van Emde Boas require to perform basic operations?
37. What is the worst case time complexity of delete operation(n is the no. of candidates)?
38. ++a*bc*+defg is an?
39. How many extra nodes are there in Full ternary tree than a complete ternary tree?
40. What is the postfix expression for the following expression tree?

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