One way to sum the numbers in a list is with the code(define (sum xs)if lempty? s+ Ihest sl sum (rest ssIt's not tail-recursive though The starter code below contains the beginning of a refactoring of the algorithm to be tail-recursive by using an accumulator and ensuring that the calto sum-heiper is the last operation in the function. Finish the jobNote: Even if the test case passes, Iwill only give you credit if you have made "sum-heiper" tail-rocursive lie, you must write a recursive solution and it must be tail-tecursivel

CODE:- (define (sum-helper a xs) (cond ((null? xs) a) ((= 0 0) (sum-helper (+ a (car…

Answered: One way to sum the numbers in a list is…

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

Section: Chapter Questions

Problem 1PE

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C
Write a recursive algorithm with the following prototype: int divide (int x, int y); that returns x/y (integer division). You need not test for divide by 0. THE FUNCTION MUST BE RECURSIVE. (hint: base case should be when x
Write code to complete raise_to_power(). Note: This example is for practicing recursion; a non-recursive function, or using the built-in function math.pow(), would be more common.Sample output with inputs: 4 24^2 = 16 def raise_to_power(base_val, exponent_val): if exponent_val == 0: result_val = 1 else: result_val = base_val * ''' Your solution goes here ''' return result_val user_base = int(input())user_exponent = int(input()) print('{}^{} = {}'.format(user_base, user_exponent, raise_to_power(user_base, user_exponent)))
REMINDER: - Every recursive function must have one or more base cases, - The general (recursive) case must eventually be reduced to a base case (terminating condition), -The base case stops the recursion, - Every recursive call has its own copy of parameters and the local variables [1]. -A recursive function is a function that calls itself [5]. Let a be an array of integers. Present recursive algorithms and write their C implementations to compute: • the maximum (minimum) element of the array, • the sum (product) of the elements of the array, • the average of the elements of the array HINT: Use functions having the following prototypes: name_of_the function (int a[ ], int n); For example, function that computes maximum/minimum element in the array can be named as find_max () / find_min ().
A 5-digit positive integer is entered through the keyboard, write a function to find reverse of the 5-digit number:(1) Without using recursion(2) Using recursion
T/F 9. As loop variables and recursive solutions are also not used for iterative solutions, the recursive solution generally makes memorization more effective (use fewer stored) than the corresponding iterative solution.
Write a recursive algorithm with the following prototype: int add (int x, int y); that returns x if y is 0; and adds x to y otherwise. THE FUNCTION MUST BE RECURSIVE. (hint: the base case should involve a test for y being 0; recursive case should reduce y towards 0)
Practice recursion on lists Practice multiple base conditions Combine recursion call with and,or not operators Search for an element in a list using recursion Instructions In this lab, we will write a recursive function for searching a list of integers/strings. Write a recursive function to determine if a list contains an element. Name the function recursive_search(aList, value), where aList is a list and value if primitive type is the object we want to search for. Return a boolean, specifically True if and only if value is an element of aList else return False from the function Examples: recursive_search([1,2,3], 2) == True recursive_search([1,2,3], 4) == False recursive_search([ ], 4) == False recursive_search([ [ 1 ], 2 ], 1) == False # -----> (because the list contains [ 1 ] and 2, not 1) Hint: Think about what the base case is? When is it obvious that the element is not in the list? If we are not at the base case, how can you use the information about the first element of the…
Write code to complete raise_to_power(). Note: This example is for practicing recursion; a non-recursive function, or using the built-in function math.pow(), would be more common.Sample output with inputs: 4 24^2 = 16 def raise_to_power(base_val, exponent_val): if exponent_val == 0: result_val = 1 else: result_val = base_val * Your solution goes here return result_val user_base = int(input())user_exponent = int(input()) print('%d^%d = %d' % (user_base, user_exponent, raise_to_power(user_base, user_exponent)))
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