Question

C program to find the sum of the indices of the elements in the array that contain positive even values. Print out only this sum.

Answer 1

Explanation:

Input : arr[] = {1, 2, 3}

Output : 6

1 + 2 + 3 = 6

Input : arr[] = {15, 12, 13, 10}

Output : 50

Recommended: Please solve it on “PRACTICE ” first, before moving on to the solution.

/* C++ Program to find sum of elements

in a given array */

#include <bits/stdc++.h>

using namespace std;

// 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;

}

// Driver code

int main()

{

int arr[] = {12, 3, 4, 15};

int n = sizeof(arr) / sizeof(arr[0]);

cout << "Sum of given array is " << sum(arr, n);

return 0;

}

// This code is contributed by tushar jindal