886. Sum of Array Elements

Given an array arr of size n, the task is to find the sum of all the elements in the array.

Example 1:

Input: n=5, arr = [1,2,3,4,5]

Output: 15

Explanation: Sum of all the elements is 1+2+3+4+5 = 15

Example 2:

Input: n=6, arr = [1,2,1,1,5,1]

Output: 11

Explanation: Sum of all the elements is 1+2+1+1+5+1 = 11

Now Your Turn!

Pick the correct output for the given input

Input: n=3, arr = [2,1,1]

Still unsure what the problem is asking ?

Let’s go through a few more examples, step by step, to make it clearer.

Constraints:

  • 1 <= n <= 105
  • 1 <= arr[i] <= 104
0
class Solution{
public:
int sum(int arr[], int n) {
}
};
Test Case

Input:

Nums
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