C/C++ Program to find sum of elements in a given array
Given an array of integers, find sum of its elements. Examples :
Input : arr[] = {1, 2, 3} Output : 6 1 + 2 + 3 = 6 Input : arr[] = {15, 12, 13, 10} Output : 50
CPP
/* CPP Program to find sum of elements in a given array */ #include <bits/stdc++.h> // function to return sum of elements // in an array of size n int sum( int arr[], int n) { int sum = 0; // initialize sum // Iterate through all elements // and add them to sum for ( int i = 0; i < n; i++) sum += arr[i]; return sum; } int main() { int arr[] = {12, 3, 4, 15}; int n = sizeof (arr) / sizeof (arr[0]); printf ( "Sum of given array is %d" , sum(arr, n)); return 0; } |
Time complexity: O(n)
Auxiliary Space: O(1)
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