A recursive function in programming is a function that calls itself during its execution. The following two functions are examples of recursive functions: def function1(length): if length > 0: print(length) function1(length - 1) def function2(length): while length > 0: print(length) function2(length - 1) What can you say about the output of function1(3) and function2(3)?

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter15: Recursion
Section: Chapter Questions
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A recursive function in programming is a function that calls itself during its execution. The following two functions are examples of recursive functions:
  1. def function1(length):
  2.     if length > 0:
  3.         print(length)
  4.         function1(length - 1)
  5. def function2(length):
  6.     while length > 0:
  7.         print(length)
  8.         function2(length - 1)
What can you say about the output of function1(3) and function2(3)?
  1. The two functions produce the same output 3 2 1.
  2. function1 produces the output:

           3

           2

           1

        and function2 runs infinitely.

    3. function1 produces the output: 3 2 1 and function2 runs infinitely.

    4. The two programs produce the same output:

         1

         2

         3

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