题解 | #从尾到头打印链表#

/*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 head ListNode类 
 * @return int整型一维数组
 */
export function printListFromTailToHead(head: ListNode): number[] {
    // write code here
    const res = []
    let cur = head
    while(cur) {
        res.unshift(cur.val)
        cur = cur.next
    }
    return res
}