Arrays in C++

What are arrays?

An array is a collection of multiple values stored in a single variable.

Declaring an Array

This is how you create an array:

int numbers[5] = {1, 2, 3, 4, 5};
            

Accessing Array Elements

Array elements are accessed using an index (starting from 0):

#include <iostream>
using namespace std;

int main() {
    int numbers[3] = {10, 20, 30};
    cout << "First element: " << numbers[0] << endl; // Output: 10
    return 0;
}
            

Looping Through an Array

You can use a loop to go through all elements:

#include <iostream>
using namespace std;

int main() {
    int numbers[5] = {10, 20, 30, 40, 50};

    for (int i = 0; i < 5; i++) {
        cout << "Element " << i << ": " << numbers[i] << endl;
    }
    return 0;
}