Question 2: Write a C++ program to:
Declare and initialize an array of 10 integers.
Calculate and print the sum of all elements.
Calculate and print the average of all elements.
#include <iostream>
using namespace std;
int main() {
// Declare and initialize array
int arr[10] = {5, 10, 15, 20, 25, 30, 35, 40, 45, 50};
int sum = 0;
// Calculate sum
for (int i = 0; i < 10; i++) {
sum += arr[i];
}
// Calculate average
double average = (double)sum / 10;
// Print results
cout << "Sum of elements: " << sum << endl;
cout << "Average of elements: " << average << endl;
return 0;
}
First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.