leetcode-Remove Duplicates from Sorted List-83
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删除重复的节点。只需要遍历一遍。
/** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */class Solution {public: ListNode* deleteDuplicates(ListNode* head) { if(head==NULL) return head; int tmp=head->val; ListNode* p=head->next; ListNode* pre=head; while(p){ if(tmp==p->val){ ListNode* q=p->next; pre->next=p->next; p=q; } else{ tmp=p->val; pre=p; p=p->next; } } return head; }}; 0 0
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