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
int i = 0, j = 0;
struct ListNode* pNodetemp = pHead;
while (NULL != pNodetemp) {
i++;
pNodetemp = pNodetemp->next;
}
if (i < k)
{
return NULL;
}
pNodetemp = pHead;
for (j = 0; j < i - k; j++) {
pNodetemp = pNodetemp->next;
}
//////////////////////////////// for the debug test print
while (NULL != pHead) {
printf("val = %d\r\n", pHead->val);
pHead = pHead->next;
}
////////////////////////////////
return pNodetemp;
}
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