Binary Search Tree (BST) and Recursive Functions

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Questions and Answers

What is the main characteristic of a recursive method?

  • It uses a stopping condition (base case) to terminate the recursion. (correct)
  • It can only be implemented in certain programming languages.
  • It can only be called once.
  • It consumes large amounts of storage.

What is a disadvantage of using recursive techniques?

  • It is provided in all programming languages.
  • It is easy to implement for problems that are naturally recursive.
  • It is not efficient in storage usage. (correct)
  • It reduces the use of variables.

In the given example, what is the 4th term of the series of Triangular Number?

  • 10 (correct)
  • 21
  • 15
  • 6

What does the base case in a recursive method represent?

<p>The condition that prevents infinite recursion. (D)</p> Signup and view all the answers

Why are not all problems suitable for solving using recursive techniques?

<p>Because they are not efficient for all types of problems. (A)</p> Signup and view all the answers

What does the recursive step in a method involve?

<p>Repeating calls to the method with arguments that will eventually reach a stopping condition. (D)</p> Signup and view all the answers

Which characteristic is NOT an advantage of using recursive techniques?

<p>Efficient in storage usage (C)</p> Signup and view all the answers

What impact does using recursive techniques have on variable usage?

<p>Reduces the use of variables. (D)</p> Signup and view all the answers

What is the primary purpose of an if-else statement in a recursive method?

<p>To distinguish between the stopping condition and a recursive step. (A)</p> Signup and view all the answers

Which statement best describes the implementation of a base case in a recursive method?

<p>It indicates when to stop the recursion. (A)</p> Signup and view all the answers

What is recursion in programming?

<p>A method that calls itself with different argument value each time (C)</p> Signup and view all the answers

What is the base case in recursion?

<p>The condition that causes the recursive method to return without calling itself (C)</p> Signup and view all the answers

Why might a recursive approach be inefficient in some cases?

<p>It calls itself excessively and consumes more memory (A)</p> Signup and view all the answers

What happens if a recursive method lacks a base case?

<p>It runs forever (infinite loop) (B)</p> Signup and view all the answers

What does recursion require to have for each argument?

<p>One or more stopping conditions (base cases) (A)</p> Signup and view all the answers

What is the relationship between recursion and a stack?

<p>Any operation that can be carried out with recursion can be carried out with a stack (D)</p> Signup and view all the answers

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