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
/* * function ListNode(x){ * this.val = x; * this.next = null; * } */ /** * 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 */ function FindKthToTail( pHead , k ) { // write code here let fastNode = pHead let slowNode = pHead for (let i = 0; i < k; i ++) { if (fastNode === null) return null fastNode = fastNode.next } while (fastNode) { fastNode = fastNode.next slowNode = slowNode.next } return slowNode } module.exports = { FindKthToTail : FindKthToTail };