Array Average

Program to calculate average of array elements

BeginnerTopic: Array Programs
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C++ Array Average Program

This program helps you to learn the fundamental structure and syntax of C++ programming.

Try This Code
#include <iostream>
#include <iomanip>
using namespace std;

int main() {
    int n;
    double sum = 0;
    
    cout << "Enter number of elements: ";
    cin >> n;
    
    int arr[n];
    
    cout << "Enter " << n << " elements: ";
    for (int i = 0; i < n; i++) {
        cin >> arr[i];
        sum += arr[i];
    }
    
    double average = sum / n;
    
    cout << fixed << setprecision(2);
    cout << "Average of array elements: " << average << endl;
    
    return 0;
}
Output
Enter number of elements: 5
Enter 5 elements: 10 20 30 40 50
Average of array elements: 30.00

Understanding Array Average

To calculate average, we sum all array elements and divide by the number of elements. We use double for sum and average to handle decimal results. The setprecision(2) formats the output to 2 decimal places.

Note: To write and run C++ programs, you need to set up the local environment on your computer. Refer to the complete article Setting up C++ Development Environment. If you do not want to set up the local environment on your computer, you can also use online IDE to write and run your C++ programs.

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