http://www.programcreek.com/2014/06/leetcode-remove-duplicates-from-sorted-list-ii-java/ 1publicstaticListNode deleteDuplicates(ListNode head){2ListNode t =newListNode(0);3t.next =head;4ListNode p =t;56while(p.next!=null&& p.next.next!=null){7if(p.next.val ==p.next.next.val){8intdup =p.next.val;9while(p.next!=n...
(Java) LeetCode 82. Remove Duplicates from Sorted List II —— 删除排序链表中的重复元素 II Given a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the original list. Example 1: Input: 1->2->3->3->4->4->5 Output: 1->2->5 Example ...
Remove duplicates from a List in Java by converting the List into a Set ASetis aCollectionthat cannot contain duplicate elements. When we convert aListinto aSet, all duplicates will be removed. import java.util.*; public class Test { public static void main(String[] args) { List<String> ...
如何移动比较链表,删除元素? 参考https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii/solution/chao-qing-xi-tu-jie-san-zhi-zhen-fa-by-justdo1t/ 第一,对于表头重复的问题,那么最简单的办法就是在表头添加一个元素,加入链表。之后在链表遍历完之后,返回哨兵的next。这是一个非常好的办...
[LeetCode][Java] Remove Duplicates from Sorted List II,题意:Givenasortedlinkedlist,deleteallnodesthathaveduplicatenumbers,leavingonly distinct numbersfromtheoriginallist.Forexample,Given
1. UsingCollection.removeIf()to Remove Duplicates from OriginalList TheremoveIf()method removes all of the elements of this collection that satisfy a specifiedPredicate. Each matching element is removed usingIterator.remove(). If the collection’s iterator does not support removal, then anUnsupportedOp...
2. Remove Duplicates From a List Using Plain Java We can easily remove the duplicate elements from a List with the standard Java Collections Frameworkthrough a Set: public void givenListContainsDuplicates_whenRemovingDuplicatesWithPlainJava_thenCorrect() { ...
*/ public class RemoveDuplicatesfromSortedList { public ListNode deleteDuplicates(ListNode head) { if(head==null){ return head; } ListNode result = new ListNode(-1); result.next = head; while(head.next!=null){ if(head.next.val==head.val){ ...
Java学习网(www.javalearns.com)提拱 现在给出一个有序的List,删除其中重复的元素,要求第个元素只能出现一次,并且是经过的排序的; 网络配图 比如: 给出2->2->3,返回 2->3; 给出2->2->3->5->5,返回 2->3->5; 要解决这个问题,首先要分析问题,找出问题的关键因素;经过分析我们可以知道要实现这个需求...
List 的contains()方法底层实现使用对象的equals方法去比较的,其实重写equals()就好,但重写了equals最好将hashCode也重写了。 可以参见:http://stackoverflow.com/questions/30745048/how-to-remove-duplicate-objects-from-java-arraylist https://jb51.net/article/243751.htm ...