Question 3: Write a C++ program to:
Declare and initialize an array of 5 integers.
Reverse the elements of the array.
Print the reversed array.
#include <iostream>
using namespace std;
int main() {
// Declare and initialize array
int arr[5] = {1, 2, 3, 4, 5};
// Print original array
cout << "Original Array: ";
for (int i = 0; i < 5; i++) {
cout << arr[i] << " ";
}
cout << endl;
// Reverse array (swap first with last, etc.)
for (int i = 0; i < 5 / 2; i++) {
int temp = arr[i];
arr[i] = arr[5 - i - 1];
arr[5 - i - 1] = temp;
}
// Print reversed array
cout << "Reversed Array: ";
for (int i = 0; i < 5; i++) {
cout << arr[i] << " ";
}
cout << endl;
return 0;
}
First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.