ListNode pre=null; ListNode cur=head;while(cur !=null){if(s.contains(cur.val)){/*if there's a duplicate element, skip the current element*/pre.next=cur.next; cur=cur.next; }else{ s.add(cur.val); pre=cur; cur=cur.next; } }returnhead; } } 双指针,不使用额外存储空间 /*** De...
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. Example 1: Input: 1->2->3->3->4->4->5 Output: 1->2->5 1. 2. Example 2: Input: 1->1->1->2->3 Output: 2->3 1. 2. 题目大意 删除链表中重复的...
For more Practice: Solve these Related Problems: Write a Python program to remove duplicates from a list while maintaining the order. Write a Python program to find all unique elements from a list that appear only once. Write a Python program to remove consecutive duplicate elements from a list...
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the original list. For example, Given1->2->3->3->4->4->5, return1->2->5. Given1->1->1->2->3, return2->3. 思路:去掉重复的链表节点。使用两个指针pPre,pCur,并且定义一个flag。
Using asetto de-duplicate You can use the built-insetconstructor to de-duplicate the items in a list (or in anyiterable): >>>unique_colors=set(all_colors)>>>unique_colors{'blue', 'pink', 'green', 'purple', 'red'} This only works for lists ofhashablevalues, but that includes quite...
mylist = ["a", "b", "a", "c", "c"] mylist = list(dict.fromkeys(mylist)) print(mylist) Create a dictionary, using the List items as keys. This will automatically remove any duplicates because dictionaries cannot have duplicate keys.Create a Dictionary mylist = ["a", "b", "a...
A Java List can contain duplicate entries, as shown in the prior example. However, every item in a HashSet must be unique. If you simply pour a Java List into a HashSet automatically dedupes the contents. List<Object>myList= List.of(0, 1, 1, 2, 3, 5, 6, 0, 0, 1);System....
Remove Duplicates from Sorted List II 链表去除重复值 Remove Duplicates from Sorted List II Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct For example, Given 1->2->3->3->4->4->5, return 1->2->5....
This tutorial will introduce the methods to remove duplicate elements from a list in C#. ADVERTISEMENT TheHashSetclassis used to create a set in C#. A set is a well-known, unordered collection of distinct objects, which means that a set’s elements are unordered and do not repeat themselves...
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