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#include <stdio.h>
#include <stdlib.h>

// Define the structure for a node in the linked list
struct Node {
    int data;
    struct Node* next;
};

// Function to create a new node with given data
struct Node* createNode(int data) {
    struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));
    newNode->data = data;
    newNode->next = NULL;
    return newNode;
}

// Function to insert a node at the end of the list
void insertAtEnd(struct Node** head, int data) {
    struct Node* newNode = createNode(data);
    if (*head == NULL) {
        // If the list is empty, the new node becomes the head
        *head = newNode;
    } else {
        // Traverse the list to find the last node
        struct Node* last = *head;
        while (last->next != NULL) {
            last = last->next;
        }
        // Insert the new node at the end
        last->next = newNode;
    }
}

// Function to print the linked list
void printList(struct Node* node) {
    while (node != NULL) {
        printf("%d -> ", node->data);
        node = node->next;
    }
    printf("NULL\n");
}

int main() {
    struct Node* head = NULL;

    // Insert 5 elements into the list
    insertAtEnd(&head, 10);
    insertAtEnd(&head, 20);
    insertAtEnd(&head, 30);
    insertAtEnd(&head, 40);
    insertAtEnd(&head, 50);

    // Print the linked list
    printf("The created linked list is: \n");
    printList(head);

    return 0;
}