题解 | #两个链表的第一个公共结点#
两个链表的第一个公共结点
https://www.nowcoder.com/practice/6ab1d9a29e88450685099d45c9e31e46
/*class ListNode { * val: number * next: ListNode | null * constructor(val?: number, next?: ListNode | null) { * this.val = (val===undefined ? 0 : val) * this.next = (next===undefined ? null : 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 pHead1 ListNode类 * @param pHead2 ListNode类 * @return ListNode类 */ export function FindFirstCommonNode(pHead1: ListNode, pHead2: ListNode): ListNode { // write code here let cur1 = pHead1, cur2 = pHead2 while(cur1 !== cur2) { cur1 = cur1 === null ? pHead2 : cur1.next cur2 = cur2 === null ? pHead1 : cur2.next } return cur1 }