Question

write a recursion (a function) sum list (nums) that calculates the sum of numbers in a list, the parameter nums is a list of integers. if the list is empty, it should return none.

Answer 1

def eval(n):

   return n[0] + eval(n[1:]) if n else 0

   

list = []

idx = int(input("How many elements will you append?: "))

for i in range(idx):

   tmp = int(input("Enter a number: "))

   list.append(tmp)

   

print("The sum of the list is:",eval(list))