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Showing posts with label circular linked list in c algorithm circular linked list insertion and deletion. Show all posts
Showing posts with label circular linked list in c algorithm circular linked list insertion and deletion. Show all posts

C Program to Demonstrate Circular Single Linked List

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circular linked list in c algorithm
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C Program to Demonstrate Circular Single Linked List




 #include <stdio.h>
 #include <stdlib.h>
 struct node { int data; struct node *link; };
struct node *head = NULL, *x, *y, *z;

 void create();
 void ins_at_beg();
void ins_at_pos();
void del_at_beg();
 void del_at_pos();
void traverse();
void search();
void sort();
void update();
 void rev_traverse(struct node *p);

int main() {
 int ch;
 printf("\n 1.Creation \n 2.Insertion at beginning \n 3.Insertion at remaining");
printf("\n4.Deletion at beginning \n5.Deletion at remaining \n6.traverse"); printf("\n7.Search\n8.sort\n9.update\n10.Exit\n");

while (1) { printf("\n Enter your choice:");
scanf("%d", &ch);
switch(ch)
{ case 1: create(); break; case 2: ins_at_beg(); break; case 3: ins_at_pos(); break; case 4: del_at_beg(); break; case 5: del_at_pos(); break; case 6: traverse(); break; case 7: search(); break; case 8: sort(); break; case 9: update(); break; case 10: rev_traverse(head); break; default: exit(0); } } return 0; }

 /*Function to create a new circular linked list*/

void create() { int c; x = (struct node*)malloc(sizeof(struct node)); printf("\n Enter the data:"); scanf("%d", &x->data); x->link = x; head = x; printf("\n If you wish to continue press 1 otherwise 0:"); scanf("%d", &c); while (c != 0) { y = (struct node*)malloc(sizeof(struct node)); printf("\n Enter the data:"); scanf("%d", &y->data); x->link = y; y->link = head; x = y; printf("\n If you wish to continue press 1 otherwise 0:"); scanf("%d", &c); } }



 /*Function to insert an element at the begining of the list*/

 void ins_at_beg() { x = head; y = (struct node*)malloc(sizeof(struct node)); printf("\n Enter the data:"); scanf("%d", &y->data); while (x->link != head) { x = x->link; } x->link = y; y->link = head; head = y; }

 /*Function to insert an element at any position the list*/


 void ins_at_pos() { struct node *ptr; int c = 1, pos, count = 1; y = (struct node*)malloc(sizeof(struct node)); if (head == NULL) { printf("cannot enter an element at this place"); } printf("\n Enter the data:"); scanf("%d", &y->data); printf("\n Enter the position to be inserted:"); scanf("%d", &pos); x = head; ptr = head; while (ptr->link != head) { count++; ptr = ptr->link; } count++; if (pos > count) { printf("OUT OF BOUND"); return; } while (c < pos) { z = x; x = x->link; c++; } y->link = x; z->link = y; }

 /*Function to delete an element at any begining of the list*/

void del_at_beg() { if (head == NULL) printf("\n List is empty"); else { x = head; y = head; while (x->link != head) { x = x->link; } head = y->link; x->link = head; free(y); } }

/*Function to delete an element at any position the list*/

void del_at_pos() { if (head == NULL) printf("\n List is empty"); else { int c = 1, pos; printf("\n Enter the position to be deleted:"); scanf("%d", &pos); x = head; while (c < pos) { y = x; x = x->link; c++; } y->link = x->link; free(x); } }

 /*Function to display the elements in the list*/
 void traverse() { if (head == NULL) printf("\n List is empty"); else { x = head; while (x->link != head) { printf("%d->", x->data); x = x->link; } printf("%d", x->data); } }

 /*Function to search an element in the list*/

void search() { int search_val, count = 0, flag = 0; printf("\nenter the element to search\n"); scanf("%d", &search_val); if (head == NULL) printf("\nList is empty nothing to search"); else { x = head; while (x->link != head) { if (x->data == search_val) { printf("\nthe element is found at %d", count); flag = 1; break; } count++; x = x->link; } if (x->data == search_val) { printf("element found at postion %d", count); } if (flag == 0) { printf("\nelement not found"); } } }

/*Function to sort the list in ascending order*/

void sort() { struct node *ptr, *nxt; int temp; if (head == NULL) { printf("empty linkedlist"); } else { ptr = head; while (ptr->link != head) { nxt = ptr->link; while (nxt != head) { if (nxt != head) { if (ptr->data > nxt->data) { temp = ptr->data; ptr->data = nxt->data; nxt->data = temp; } } else { break; } nxt = nxt->link; } ptr = ptr->link; } } }

 /*Function to update an element at any position the list*/
 void update() { struct node *ptr; int search_val; int replace_val; int flag = 0; if (head == NULL) { printf("\n empty list"); } else { printf("enter the value to be edited\n"); scanf("%d", &search_val); fflush(stdin); printf("enter the value to be replace\n"); scanf("%d", &replace_val); ptr = head; while (ptr->link != head) { if (ptr->data == search_val) { ptr->data = replace_val; flag = 1; break; } ptr = ptr->link; } if (ptr->data == search_val) { ptr->data = replace_val; flag = 1; } if (flag == 1) { printf("\nUPdate sucessful"); } else { printf("\n update not successful"); } } }

/*Function to display the elements of the list in reverse order*/
void rev_traverse(struct node *p) { int i = 0; if (head == NULL) { printf("empty linked list"); } else { if (p->link != head) { i = p->data; rev_traverse(p->link); printf(" %d", i); } if (p->link == head) { printf(" %d", p->data); } } }





  • circular linked list in c source code
  • circular linked list in c algorithm
  • circular linked list insertion and deletion
  • circular linked list in c++
  • circular linked list in c geeksforgeeks
  • c program for doubly linked list
  • circular linked list in c pdf
  • circular linked list code java







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