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- import java.io.*;
- import java.util.*;
- 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();
- }
- }
- 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;
- }
- public void setFirst(DLLNode<E> first) {
- this.first = first;
- }
- public void setLast(DLLNode<E> last) {
- this.last = last;
- }
- }
- public class DLLVojska
- {
- public static DLL<Integer> vojska(DLL<Integer> lista ,int a,int b,int c,int d)
- {
- DLLNode<Integer> A = null;
- DLLNode<Integer> B = null;
- DLLNode<Integer> C = null;
- DLLNode<Integer> D = null;
- DLLNode<Integer> dvizi = lista.getFirst();
- while(dvizi!=null)
- {
- if(dvizi.element.equals(a))
- {
- A = dvizi;
- }
- if(dvizi.element.equals(b))
- {
- B = dvizi;
- }
- if(dvizi.element.equals(c))
- {
- C = dvizi;
- }
- if(dvizi.element.equals(d))
- {
- D = dvizi;
- }
- dvizi = dvizi.succ;
- }
- DLLNode<Integer> pomA = A.pred;
- DLLNode<Integer> pomB = B.succ;
- DLLNode<Integer> pomC = C.pred;
- DLLNode<Integer> pomD = D.succ;
- B.succ = pomD;
- if(pomD!=null)
- {
- pomD.pred = B;
- }
- else
- {
- lista.setLast(B);
- }
- if(pomA!=null)
- {
- C.pred = pomA;
- pomA.succ = C;
- }
- else
- {
- lista.setFirst(C);
- }
- if(pomB!=C)
- {
- D.succ = pomB;
- pomB.pred = D;
- }
- else
- {
- D.succ = A;
- A.pred = D;
- }
- if(pomC!=B)
- {
- pomC.succ = A;
- A.pred = pomC;
- }
- return lista;
- }
- public static void main(String[] args) throws IOException {
- BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
- DLL<Integer> lista = new DLL();
- int N = Integer.parseInt(br.readLine());
- String line = br.readLine();
- String []pomNiza = line.split(" ");
- for (int i = 0; i < N; i++) {
- lista.insertLast(Integer.parseInt(pomNiza[i]));
- }
- line = br.readLine();
- pomNiza = line.split(" ");
- int a = Integer.parseInt(pomNiza[0]);
- int b = Integer.parseInt(pomNiza[1]);
- line = br.readLine();
- pomNiza = line.split(" ");
- int c = Integer.parseInt(pomNiza[0]);
- int d = Integer.parseInt(pomNiza[1]);
- DLL<Integer> result = vojska(lista,a,b,c,d);
- System.out.println(result);
- }
- }
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