Efficiently Sum a Large Array | Dataford Interview Questions

How would efficiently sum a large array?

Implement the function below to return the sum of every integer in the input array. The solution should process each element once and use constant auxiliary space.

Function signature: def sum_large_array(nums):

Input is a list of integers. Output is one integer containing their total.

Constraints

0 <= nums.length <= 10^7
-10^9 <= nums[i] <= 10^9
Return the exact integer sum

Function Signature

def sum_large_array(nums):

Your question is Efficiently Sum a Large Array. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem