Array Traversal Coding | Dataford Interview Questions

Advanced World Solutions, Inc. processes sequential measurement values in memory. Given an array of integers, traverse the array from left to right and return the sum of every element.

Each element must be included exactly once. The array may contain positive numbers, negative numbers, and zero. Do not modify the input array.

Formal Specification

Implement sum_array(nums).

Input: nums, a list of integers.
Output: An integer equal to the sum of all values in nums.
Traversal order: Process elements from index 0 through index len(nums) - 1.

Constraints

0 <= len(nums) <= 10^5
-10^9 <= nums[i] <= 10^9
The input list must not be modified

Function Signature

def sum_array(nums):

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