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- import java.io.BufferedReader;
- import java.io.IOException;
- import java.io.InputStreamReader;
- class DLL<E> {
- private DLLNode<E> first, last;
- public DLL() {
- // Construct an empty SLL
- this.first = null;
- this.last = null;
- }
- public void deleteList() {
- first = null;
- last = null;
- }
- public int length() {
- int ret;
- if (first != null) {
- DLLNode<E> tmp = first;
- ret = 1;
- while (tmp.succ != null) {
- tmp = tmp.succ;
- ret++;
- }
- return ret;
- } else {
- return 0;
- }
- }
- public DLLNode<E> find(E o) {
- if (first != null) {
- DLLNode<E> tmp = first;
- while (tmp.element != o && tmp.succ != null) {
- tmp = tmp.succ;
- }
- if (tmp.element == o) {
- return tmp;
- } else {
- System.out.println("Elementot ne postoi vo listata");
- }
- } else {
- System.out.println("Listata e prazna");
- }
- return first;
- }
- public void insertFirst(E o) {
- DLLNode<E> ins = new DLLNode<E>(o, null, first);
- if (first == null) {
- last = ins;
- } else {
- first.pred = ins;
- }
- first = ins;
- }
- public void insertLast(E o) {
- if (first == null) {
- insertFirst(o);
- } else {
- DLLNode<E> ins = new DLLNode<E>(o, last, null);
- last.succ = ins;
- last = ins;
- }
- }
- public void insertAfter(E o, DLLNode<E> after) {
- if (after == last) {
- insertLast(o);
- return;
- }
- DLLNode<E> ins = new DLLNode<E>(o, after, after.succ);
- after.succ.pred = ins;
- after.succ = ins;
- }
- public void insertBefore(E o, DLLNode<E> before) {
- if (before == first) {
- insertFirst(o);
- return;
- }
- DLLNode<E> ins = new DLLNode<E>(o, before.pred, before);
- before.pred.succ = ins;
- before.pred = ins;
- }
- public E deleteFirst() {
- if (first != null) {
- DLLNode<E> tmp = first;
- first = first.succ;
- if (first != null) {
- first.pred = null;
- }
- if (first == null) {
- last = null;
- }
- return tmp.element;
- } else {
- return null;
- }
- }
- public E deleteLast() {
- if (first != null) {
- if (first.succ == null) {
- return deleteFirst();
- } else {
- DLLNode<E> tmp = last;
- last = last.pred;
- last.succ = null;
- return tmp.element;
- }
- }
- // else throw Exception
- return null;
- }
- public E delete(DLLNode<E> node) {
- if (node == first) {
- deleteFirst();
- return node.element;
- }
- if (node == last) {
- deleteLast();
- return node.element;
- }
- node.pred.succ = node.succ;
- node.succ.pred = node.pred;
- return node.element;
- }
- @Override
- public String toString() {
- String ret = new String();
- if (first != null) {
- DLLNode<E> tmp = first;
- ret += tmp + " ";
- while (tmp.succ != null) {
- tmp = tmp.succ;
- ret += tmp + " ";
- }
- } else {
- ret = "Prazna lista!!!";
- }
- return ret;
- }
- public String toStringR() {
- String ret = new String();
- if (last != null) {
- DLLNode<E> tmp = last;
- ret += tmp + "<->";
- while (tmp.pred != null) {
- tmp = tmp.pred;
- ret += tmp + "<->";
- }
- } else {
- ret = "Prazna lista!!!";
- }
- return ret;
- }
- public DLLNode<E> getFirst() {
- return first;
- }
- public DLLNode<E> getLast() {
- return last;
- }
- }
- class DLLNode<E> {
- protected E element;
- protected DLLNode<E> pred, succ;
- public DLLNode(E elem, DLLNode<E> pred, DLLNode<E> succ) {
- this.element = elem;
- this.pred = pred;
- this.succ = succ;
- }
- @Override
- public String toString() {
- return element.toString();
- }
- }
- /**
- *
- * @author Damjan
- */
- public class BubbleSortDLL {
- public static void main(String[] args) throws IOException {
- BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
- DLL<Integer> list = new DLL<>();
- String input = reader.readLine();
- int N = Integer.parseInt(input);
- input = reader.readLine();
- String[] arrayElements = input.split(" ");
- for (int i = 0; i < N; ++i) {
- list.insertLast(Integer.parseInt(arrayElements[i]));
- }
- bubbleSort(list);
- printDLL(list);
- }
- static void printDLL(DLL<Integer> list) {
- DLLNode<Integer> node = list.getFirst();
- while (node != null) {
- System.out.print(node.element);
- if (node.succ != null) {
- System.out.print(" ");
- }
- node = node.succ;
- }
- }
- static void bubbleSort(DLL<Integer> list) {
- for (DLLNode<Integer> node = list.getFirst(); node.succ != null; node = node.succ) {
- for (DLLNode<Integer> tmp = list.getFirst(); tmp.succ != null; tmp = tmp.succ) {
- if (tmp.element > tmp.succ.element) {
- int temp = tmp.element;
- tmp.element = tmp.succ.element;
- tmp.succ.element = temp;
- }
- }
- }
- }
- }
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