Simple Array Sum

Easy

Given an array of integers, compute the sum of all the elements in the array.

Example 1

Input

[
  1,
  2,
  3
]

Output

Explanation. The sum of 1, 2, and 3 is 6.

Example 2

Input

[
  -1,
  -2,
  -3,
  1
]

Output

-5

Explanation. The sum of -1, -2, -3, and 1 is -5.

Example 3

Input

[
  0,
  0,
  0,
  0
]

Output

Explanation. The sum of four zeros is 0.

Example 4

Input

[
  1000,
  -1000
]

Output

Explanation. The sum of 1000 and -1000 is 0.

Follow-up: Can you optimize your solution to use the least amount of additional memory?

Constraints:

- The array will contain at least 1 and at most 1000 elements.\n- Each element in the array will be an integer between -1000 and 1000.

Solution