Calculate sum of list
Lists & Tuples
Given a list of numbers `arr`, return the sum of all elements.
// EXAMPLES
Example 1:
Input:
Input: [1, 2, 3, 4]Output:
10Explanation: Result for example 1 of Calculate sum of list.
Example 2:
Input:
Input: [-1, 1, 0]Output:
0Explanation: Result for example 2 of Calculate sum of list.
// CONSTRAINTS
1 <= len(input) <= 10^5Time Complexity target: O(N) or O(N log N)Space Complexity target: O(1) or O(N)Evaluated against 100 test cases.
solution.py