Project 1 - Creation of user defined data type to implement the user interfaces for working with ‘Set’ (Mathematical Set theory) using Linked List
#include
#include
// Link list node
struct Node {
int data;
struct Node* next;
}; //user defined data function
void push(struct Node** head_ref, int new_data);//user defined data function // function declaration
int isPresent(struct Node* head, int data);//user defined data function //function declaration
// Function to get union of two linked lists head1 and head2
struct Node* getUnion(struct Node* head1, struct Node* head2)
{
struct Node* result = NULL;
struct Node *t1 = head1, *t2 = head2;
// Insert all elements of list1 to the result list
while (t1 != NULL)
{
push(&result, t1->data);
t1 = t1->next;
}
// Insert those elements of list2 which are not present in result list
while (t2 != NULL)
{
if (!isPresent(result, t2->data))
{
push(&result, t2->data);
}
t2 = t2->next;
}
return result;
}
// Function to get intersection of two linked lists head1 and head2
struct Node* getIntersection(struct Node* head1, struct Node* head2)
{
struct Node* result = NULL;
struct Node* t1 = head1;
// Traverse list1 and search each element of it in list2. If the element is present in list 2, then insert the element to result
while (t1 != NULL)
{
if (isPresent(head2, t1->data))
{
push(&result, t1->data);
}
t1 = t1->next;
}
return result;
}
// function that returns true if data is present in linked list else return false
int isPresent(struct Node* head, int data) // called function
{
struct Node* t = head;
while (t != NULL)
{
if (t->data == data)
{
return 1;
}
t = t->next;
}
return 0;
}
// A utility function to insert a node at the beginning of a linked list
void push(struct Node** head_ref, int new_data) // called function
{
// allocate memory to the node
struct Node* new_node = (struct Node*)malloc(sizeof(struct Node)); // memory allocation
// put in the data
new_node->data = new_data;
// link the old list off the new node
new_node->next = (*head_ref);
// move the head to point to the new node
(*head_ref) = new_node;
}
// function to print a linked list
void printList(struct Node* node) // called function
{
while (node != NULL)
{
printf("%d ", node->data);
node = node->next;
}
}
// Driver program to test above function
int main()
{
int n,m,temp;
printf("enter the number of link list n and m :-");
fflush(stdout);
scanf("%d %d", &n, &m);
// Starth structure pointer with the empty list // To access the structure members
struct Node* head1 = NULL;
struct Node* head2 = NULL;
struct Node* intersecn = NULL;
struct Node* unin = NULL ;
//for loop for link list1
for(int i=0;i { printf("Enter the value in link list1 %d:-",i); fflush(stdout); scanf("%d", &temp); push(&head1, temp); // call function } //for loop for link list2 for(int i=0;i { printf("Enter the value in link list2 %d:-",i); fflush(stdout); scanf("%d", &temp); push(&head2, temp); // call function } //call the function of intersection intersecn = getIntersection(head1, head2); //call the function of union unin = getUnion(head1, head2); // call function printf("\n First list is "); //function calling with structure pointer as argument printList(head1); // call function printf("\n Second list is "); printList(head2); // call function printf("\n Intersection list is "); printList(intersecn); // call function printf("\n Union list is "); printList(unin); // call function return 0; }