Question

Write a function either in a functional language or in Java but not using any variables or mutables which will be given a number and a list of values and which will return the sum of all the values that are strictly greater than the number. For example: If num = 5 and the list is 9,2,4,8 then the function would return 17 (since 9&8 are greater than 5) If num = 11 and the list is 9,2,4,8 then the function would return 0 (since the sum of no values is 0). You will need to use recursion.

Answer 1

CODE IN FUNCTIONAL PROGRAMMING LANGUAGE : PYTHON:

def sumGreaterThanVal(inputList, number): if len(inputList) == 0: return 0 if len(inputList) == 1: if inputList[0] > number: return inputList[0] return 0 if inputList[0] > number: return inputList[0] + sumGreaterThanVal(inputList[1:], number) return sumGreaterThanVal(inputList[1:], number) print("sumGreaterThanVal([9, 2, 4, 8], 5) : ", sumGreaterThanVal([9, 2, 4, 8], 5)) print("sumGreaterThanVal([9, 2, 4, 8], 11) : ", sumGreaterThanVal([9, 2, 4, 8], 11))

INDENTATION:

def sumGreaterThanval(inputList, number): if len(inputList) == 0: return if len(inputList) == 1: if inputList[@] > number: return inputList[@] return if inputList[O] > number: return inputList[@] + sumGreater Thanval(inputList[1:], number) return sumGreater Thanval(inputList[1:], number) print("sumGreaterThanVal([9, 2, 4, 8], 5) : ", sumGreater Thanval([9, 2, 4, 8], 5)) print("sumGreaterThanVal([9, 2, 4, 8], 11): ", sumGreaterThanval([9, 2, 4, 8], 11)

OUTPUT:

Sum x C:\Users\madhu\venv\Python3.8\Scripts\python.exe D:/PythonWorld/HelloWorld/Sum.py sumGreaterThanVal([9, 2, 4, 8], 5) : 17 sumGreater Thanval([9, 2, 4, 8], 11): 0 Process finished with exit code o