출처 : https://leetcode.com/problems/remove-duplicates-from-sorted-list/
Remove Duplicates from Sorted List - LeetCode
Can you solve this real interview question? Remove Duplicates from Sorted List - Given the head of a sorted linked list, delete all duplicates such that each element appears only once. Return the linked list sorted as well. Example 1: [https://assets.le
leetcode.com
/**
* Definition for singly-linked list.
* public class ListNode {
* int val;
* ListNode next;
* ListNode() {}
* ListNode(int val) { this.val = val; }
* ListNode(int val, ListNode next) { this.val = val; this.next = next; }
* }
*/
class Solution {
public ListNode deleteDuplicates(ListNode head) {
if(head == null) return null;
ListNode node = head;
while(node != null && node.next != null) {
if(node.val == node.next.val) {
node.next = node.next.next;
}
else {
node = node.next;
}
}
return head;
}
}