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 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.