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- import java.io.BufferedReader;
- import java.io.IOException;
- import java.io.InputStreamReader;
- 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 setFirst(DLLNode<E> pom) {
- first = pom;
- }
- public DLLNode<E> getFirst() {
- return first;
- }
- 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 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 void setLast(DLLNode<E> node)
- {
- last = node;
- }
- @Override
- public String toString() {
- String s = new String();
- DLLNode<E> dvizi = first;
- while(dvizi!=null)
- {
- if(dvizi.succ==null)
- s = s+ dvizi.element;
- else
- s = s+ dvizi.element+" ";
- dvizi = dvizi.succ;
- }
- return s;
- }
- public DLLNode<E> getLast() {
- return last;
- }
- }
- public class Rt {
- public static boolean samoglaska(char c)
- {
- c = Character.toLowerCase(c);
- if(c=='a' || c=='e' || c=='i' || c=='o' || c=='u')
- return true;
- return false;
- }
- public static void otstrani(DLL<String> lista)
- {
- DLLNode<String> dvizi = lista.getFirst();
- while(dvizi.succ!=null)
- {
- if(dvizi.element.equals(dvizi.succ.element) || (samoglaska(dvizi.element.charAt(0)) && samoglaska(dvizi.succ.element.charAt(0)) || ((samoglaska(dvizi.element.charAt(0))==false) && samoglaska(dvizi.succ.element.charAt(0))==false )))
- {
- dvizi.succ.pred = null;
- dvizi.succ = dvizi.succ.succ;
- if(dvizi.succ!=null)
- dvizi.succ.pred = dvizi;
- }
- else
- {
- dvizi = dvizi.succ;
- }
- }
- }
- public static void main(String[] args) throws IOException {
- DLL<String> lista = new DLL<>();
- BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
- String s =stdin.readLine();
- String pomniza[] = s.split(" ");
- /*s.trim();
- char niza[] = s.toCharArray();*/
- for(int i=0;i<pomniza.length;i++)
- {
- lista.insertLast(pomniza[i]);
- }
- otstrani(lista);
- System.out.println(lista);
- }
- }
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