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bubble sort.c
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bubble sort.c
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#include <stdio.h>
//Represent a node of the singly linked list
struct node{
int data;
struct node *next;
};
//Represent the head and tail of the singly linked list
struct node *head, *tail = NULL;
//addNode() will add a new node to the list
void addNode(int data) {
//Create a new node
struct node *newNode = (struct node * )malloc( sizeof(struct node));
newNode->data = data;
newNode->next = NULL;
//Checks if the list is empty
if(head == NULL) {
//If list is empty, both head and tail will point to new node
head = newNode;
tail = newNode;
}
else {
//newNode will be added after tail such that tail's next will point to newNode
tail->next = newNode;
//newNode will become new tail of the list
tail = newNode;
}
}
//sortList() will sort nodes of the list in ascending order
void sortList() {
//Node current will point to head
struct node *current = head, *index = NULL;
int temp;
if(head == NULL) {
return;
}
else {
while(current != NULL) {
//Node index will point to node next to current
index = current->next;
while(index != NULL) {
//If current node's data is greater than index's node data, swap the data between them
if(current->data > index->data) {
temp = current->data;
current->data = index->data;
index->data = temp;
}
index = index->next;
}
current = current->next;
}
}
}
//display() will display all the nodes present in the list
void display() {
//Node current will point to head
struct node *current = head;
if(head == NULL) {
printf("List is empty \n");
return;
}
while(current != NULL) {
//Prints each node by incrementing pointer
printf("%d ", current->data);
current = current->next;
}
printf("\n");
}
int main()
{
int n,data;
scanf("%d",&n);
//Adds data to the list
for(int i=0;i<n;i++)
{
scanf("%d",&data);
addNode(data);
}
//Displaying original list
//Sorting list
sortList();
//Displaying sorted list
display();
return 0;
}