package main
import . "nc_tools"
/*
 * type ListNode struct{
 *   Val int
 *   Next *ListNode
 * }
 */

/**
 * 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 the head
 * @return bool布尔型
*/
func isPail( head *ListNode ) bool {
    nodes := make([]int, 0)
    for head != nil {
        nodes = append(nodes, head.Val)
        head = head.Next
    }
    l, r := 0, len(nodes)-1
    for l < r {
        if nodes[l] != nodes[r] {
            return false
        }
        l++
        r--
    }
    return true
}