1.      Program to calculate the average of all elements in an array.

1. #include <iostream.h>

2. #include<conio.h>

3. int main() {

4.     int n, sum = 0;

5.     float average;

6.  

7.     cout << "Enter the number of elements(less then 100): ";

8.     cin >> n;

9.  

10.     int arr[100];

11.  

12.     cout << "Enter the elements:\n";

13.     for (int i = 0; i < n; i++) {

14.         cin >> arr[i];

15.         sum += arr[i];

16.     }

17.  

18.     average = (float)sum / n;

19.  

20.     cout << "Average of the array elements: " << average << endl;

21.     getch();

22.     return 0;

24. }