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20 lines
355 B
C
20 lines
355 B
C
/**
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* Definition for singly-linked list.
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* struct ListNode {
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* int val;
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* struct ListNode *next;
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* };
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*/
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struct ListNode* middleNode(struct ListNode* head){
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struct ListNode *fast, *slow;
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fast = slow = head;
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while(fast && fast->next) {
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slow = slow -> next;
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fast = fast -> next -> next;
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}
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return slow;
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}
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