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83.cpp
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24 lines (24 loc) · 608 Bytes
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/**
* Definition for singly-linked list.
* struct ListNode {
* int val;
* ListNode *next;
* ListNode() : val(0), next(nullptr) {}
* ListNode(int x) : val(x), next(nullptr) {}
* ListNode(int x, ListNode *next) : val(x), next(next) {}
* };
*/
class Solution {
public:
ListNode* deleteDuplicates(ListNode* head) {
ListNode* curr = head;
while(curr!=NULL && curr->next!=NULL)
{
if(curr->next->val==curr->val)
curr->next=curr->next->next;
else
curr=curr->next;
}
return head;
}
};