def fun(nums: List[int], key):        count = 0     for v in nums:         if v == key             count = count + 1     return count            a. What does this function do? b. Write an equivalent function using recursion. c. What's advantages and disadvantages of both implementations in terms of time and space complexity

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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def fun(nums: List[int], key):   
    count = 0     for v in nums:
        if v == key
            count = count + 1     return count     

     

a. What does this function do?

b. Write an equivalent function using recursion.

c. What's advantages and disadvantages of both implementations in terms of time and space complexity.

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Step 1

Given program contains a function fun() which takes List and key as inputs. Then for loop iterates nums times where nums represent number of elements in the list. Then if that value is equal to key then count is increased by 1 and at last the value of count is returned.

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