Question

Write a function called sum_arrays that takes two lists of the same length and returns a list where each element is the sum of the elements at that index in the original list. The function should return the empty list if the parameters are not the same size.

Answer 1

The function that calls sum_arrays and takes two lists of the same length and returns a list where each element is the sum of the elements at that index in the original list is as follows:

def  sum_arrays(list1, list2):

    if len(list1)==len(list2):

         return [sum(i) for i in zip(list1, list2)]

    else:

         return []

print(sum_arrays( [1, 3, 4, 6, 0], [4, 5, 6, 2, 10]))

Code Explanation:

The code is written in python.

• A function named sum_arrays is declared with its arguments as list1 and list2.
• We use the if statement to check if the two list are equal in length.
• If they are equal in length, we add the two list
• Else we will return an empty list
• Finally, we call the function with its arguments.  

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