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  1. public class Main {
  2.     public static class Node {
  3.         int value;
  4.         Node next;
  5.  
  6.         public Node(int value) {
  7.             this.value = value;
  8.         }
  9.     }
  10.  
  11.     public static class LinkedList {
  12.         Node head;
  13.  
  14.         public void removeFirstThree() {
  15.             // Sprawdź, czy lista nie jest pusta
  16.             if (head == null) {
  17.                 return;
  18.             }
  19.  
  20.             // Usuń pierwsze trzy elementy
  21.             int count = 0;
  22.             while (head != null && count < 3) {
  23.                 head = head.next;
  24.                 count++;
  25.             }
  26.         }
  27.     }
  28.  
  29.     public static void main(String[] args) {
  30.         // Przykład użycia
  31.         LinkedList list = new LinkedList();
  32.         list.head = new Node(1);
  33.         list.head.next = new Node(2);
  34.         list.head.next.next = new Node(3);
  35.         list.head.next.next.next = new Node(4);
  36.         list.head.next.next.next.next = new Node(5);
  37.  
  38.         System.out.println("Przed usunięciem: ");
  39.         printList(list.head);
  40.  
  41.         list.removeFirstThree();
  42.  
  43.         System.out.println("Po usunięciu: ");
  44.         printList(list.head);
  45.     }
  46.  
  47.     public static void printList(Node head) {
  48.         Node current = head;
  49.         while (current != null) {
  50.             System.out.print(current.value + " ");
  51.             current = current.next;
  52.         }
  53.         System.out.println();
  54.     }
  55. }
Success #stdin #stdout 0.12s 48060KB
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stdin
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Standard input is empty
stdout
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Przed usunięciem: 
1 2 3 4 5 
Po usunięciu: 
4 5
https://ideone.com/qz7aBo
language:
Java (12.0.1)
created:
333 days ago
visibility:
public

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