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CodeWars Python Solutions

Sum Arrays

Write a method sum (sum_array in python, sumarray in julia, SumArray in C#) that takes an array of numbers and returns the sum of the numbers. These may be integers or decimals for Ruby and any instance of Num for Haskell. The numbers can also be negative. If the array does not contain any numbers then you should return 0.

Examples

print sum_array([1 2 3])
> 6
print sum_array([])
> 0

Assumptions

  • You can assume that you are only given numbers.
  • You cannot assume the size of the array.
  • You can assume that you do get an array and if the array is empty, return 0.

Given Code

def sum_array(a):
    pass

Solution

def sum_array(a):
    return sum(a)

See on CodeWars.com