题解 | #链表中倒数第k个结点#

typedef struct ListNode Node;
struct ListNode* FindKthToTail(struct ListNode* pListHead, int k ) {
    
    Node* slow = pListHead;
    Node* flast = pListHead;
    for (int i = 0; i < k; i++) 
    {
     if (flast)
        {
         flast = flast->next;
        }
     else {
         return NULL;
     }
    }
    while (flast) 
    {
      flast = flast->next;
      slow = slow->next;
    }
    return slow; 

}