Help add up the elements in the array.

Question

#include <iostream>
#include <math.h>
using namespace std;

int main()
{
const int size = 9;
int arr[size];
arr[0] = 2;
cout << "Your array: ";
for (int i = 0; i < size; i++)
cout << pow(arr[0], i) << ' ';
}

Answer 1

#include <iostream>
#include <math.h>
using namespace std;

int main()
{

const int size = 9;
int arr[size];
arr[0] = 2;
int sum=0;
cout << "Your array: ";
for (int i = 0; i < size; i++){
sum+=arr[i];

}
cout<<sum;
}

Answer 2

Like this??

Answer 3

No.Atul
There are two task.
1. Fill an array of 10 elements powers of two. ( I did this.) Array (1 2 4 8 16 32 64 128 256)
2. Calculate the sum of the numbers from the array obtained in the first task.

Answer 4

Sum of 1 2 4 8....?