Problem
Return the total of all numbers in the list. An empty list sums to 0.
Implement sum_array(numbers).
Input
numbers: The list of integers.
Output
Return the sum.
Constraints
0 ≤ length ≤ 100,000; the total fits in a 64-bit integer
Examples
Example 1
Input:
numbers = [1, 2, 3, 4]
Expected output:
expected = 10Input:
std::vector<long long> numbers = {1, 2, 3, 4};
Expected output:
long long expected = 10;Input:
long[] numbers = new long[] {1, 2, 3, 4};
Expected output:
long expected = 10;Explanation
1 + 2 + 3 + 4 = 10.
Example 2
Input:
numbers = []
Expected output:
expected = 0Input:
std::vector<long long> numbers = {};
Expected output:
long long expected = 0;Input:
long[] numbers = new long[] {};
Expected output:
long expected = 0;Explanation
Nothing to add: 0.
References
This challenge is adapted for CodeUtility. Follow the statement and constraints above.