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Sum of Array
School Accuracy: 59.36% Submissions: 12806 Points: 0

Given an integer array Arr[] of size N. The task is to find sum of it.

Example 1:

Input:
N = 4
Arr[] = {1, 2, 3, 4}
Output: 10
Explanation: 1 + 2 + 3 + 4 = 10.

Example 2:

Input:
N = 3
Arr[] = {1, 3, 3}
Output: 7
Explanation: 1 + 3 + 3 = 7.

Your Task:
Complete the function sum() which takes array arr and single integer n, as input parameters and returns an integer denoting the answer. You don't to print answer or take inputs.

Expected Time Complexity: O(N)
Expected Auxiliary Space: O(1)

Constraints:
1 <= N <= 105
1 <= Arr[i] <= 104

 

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Sum of Array

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