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Arrays in C

Example

#include<stdio.h>  // Include the standard input-output library

int main() {
    // Array declaration and initialization
    int arr[5] = {1, 2, 3, 4, 5};

    // Accessing and printing array elements
    printf("Elements of the array:\n");
    for (int i = 0; i < 5; i++) {
        printf("%d\n", arr[i]);
    }

    return 0;
}
        

Explanation:

Arrays in C are used to store multiple values of the same type in a single variable. They provide a way to store and access data sequentially.

In this example:

• #include<stdio.h>: Includes the standard input-output library which allows us to use the printf function.
• int main(): The main function where the program execution begins.
• int arr[5] = {1, 2, 3, 4, 5};: Declares an integer array named arr with 5 elements, and initializes it with values 1, 2, 3, 4, 5.
• printf("Elements of the array:\n");: Prints a header for the array elements.
• for (int i = 0; i < 5; i++): A loop that iterates through the array elements.
• printf("%d\n", arr[i]);: Prints each element of the array.
• return 0;: Ends the main function and returns 0 to the operating system, indicating that the program ended successfully.

In summary, arrays in C allow you to store a collection of values in a single variable, making it easier to manage and manipulate data. They are essential for tasks that require working with multiple related values.