题解 | #链表中倒数最后k个结点#
链表中倒数最后k个结点
https://www.nowcoder.com/practice/886370fe658f41b498d40fb34ae76ff9
/** * struct ListNode { * int val; * struct ListNode *next; * }; */ /** * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 * * * @param pHead ListNode类 * @param k int整型 * @return ListNode类 */ struct ListNode* FindKthToTail(struct ListNode* pHead, int k ) { // write code here struct ListNode *f = NULL; if(pHead == NULL) return f; f = pHead; for(int i = 0; i < k; i++) { f = f->next; if(f == NULL && i != k - 1) { return f; } } struct ListNode *s = pHead; while(f != NULL) { f = f->next; s = s->next; } return s; }