7. Basic Single Linked List and create the first node of the list.c

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

struct node{
    int data;
    struct node *link;
};

int main(){

    struct node *head = NULL;
    head = (struct node *)malloc(sizeof(struct node));
    head -> data = 45;
    head -> link = NULL;
    printf("Output= %d", head -> data);


return 0;
}