Question 1: Write a C++ program to perform the following operations on an array:
Declare and initialize an array of 5 integers.
Access and print each element using a loop.
Modify the third element of the array. Print the modified array.
#include <iostream>
using namespace std;
int main() {
// Declare and initialize array
int arr[5] = {10, 20, 30, 40, 50};
// Print elements using loop
cout << "Original Array: ";
for (int i = 0; i < 5; i++) {
cout << arr[i] << " ";
}
cout << endl;
// Modify third element (index 2)
arr[2] = 99;
// Print modified array
cout << "Modified 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.