Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- #include <iostream>
- using namespace std;
- struct node {
- int info;
- node *next;
- };
- struct SinglyLinkedList {
- node * head;
- void init() {
- head = NULL;
- }
- void insertFront(int x) {
- node * new_node = new node;
- new_node->info = x;
- new_node->next = NULL;
- if(head == NULL) {
- head = new_node;
- }
- else {
- new_node->next = head;
- head = new_node;
- }
- }
- void insertBack(int x) {
- node * new_node = new node;
- new_node->info = x;
- new_node->next = NULL;
- if(head == NULL) {
- head = new_node;
- }
- else {
- node * tmp = head;
- while(tmp->next != NULL) {
- tmp = tmp->next;
- }
- tmp->next = new_node;
- }
- }
- void insertAfter(int position, int x) {
- node * new_node = new node;
- new_node->info = x;
- node *tmp = head;
- while(tmp != NULL && position > 0) {
- position--;
- tmp = tmp->next;
- }
- if(tmp != NULL) {
- if(tmp->next == NULL) {
- insertBack(x);
- }
- else {
- new_node->next = tmp->next;
- tmp->next = new_node;
- }
- }
- }
- void deleteFront() {
- if(head != NULL) {
- if(head->next == NULL) {
- delete head;
- head = NULL;
- }
- else {
- node * tmp = head;
- head = head->next;
- delete tmp;
- }
- }
- }
- void deleteBack() {
- if(head != NULL) {
- if(head->next == NULL) {
- delete head;
- head = NULL;
- }
- else {
- node * tmp = head;
- while(tmp->next->next != NULL) {
- tmp = tmp->next;
- }
- delete tmp->next;
- tmp->next = NULL;
- }
- }
- }
- void deleteAll() {
- while(head != NULL) {
- deleteFront();
- }
- }
- void deleteNode(int x) {
- if(head != NULL) {
- if(head->info == x) {
- deleteFront();
- }
- else {
- node * tmp = head;
- node * prev = NULL;
- while(tmp != NULL && tmp->info != x) {
- prev = tmp;
- tmp = tmp->next;
- }
- if(tmp != NULL) {
- prev->next = tmp->next;
- delete tmp;
- }
- }
- }
- }
- void deleteNode(node * x) {
- if(head != NULL) {
- if(head == x) {
- deleteFront();
- }
- else {
- node * tmp = head;
- node * prev = NULL;
- while(tmp != NULL && tmp != x) {
- prev = tmp;
- tmp = tmp->next;
- }
- prev->next = tmp->next;
- delete tmp;
- }
- }
- }
- void print() {
- node * tmp = head;
- while(tmp != NULL) {
- cout << tmp->info << " --> ";
- tmp = tmp->next;
- }
- cout << endl;
- }
- };
- int main() {
- SinglyLinkedList sll;
- sll.init();
- int n;
- cin >> n;
- for(int i =0 ; i < n; i++) {
- int x;
- cin >> x;
- sll.insertBack(x);
- }
- int broj;
- cin >> broj;
- for(int i =0; i < n; i++) {
- sll.deleteNode(broj);
- }
- sll.print();
- return 0;
- }
Advertisement
Add Comment
Please, Sign In to add comment