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Main.java
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Main.java
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package com.company;
class ListNode {
int val;
ListNode next;
ListNode() {}
ListNode(int val) { this.val = val; }
ListNode(int val, ListNode next) { this.val = val; this.next = next; }
}
public class Main {
public static void main(String[] args) {
// write your code here
}
public boolean isPalindrome(ListNode head) {
ListNode point = head;
ListNode reversed = reverse(point);
while (head != null){
if(head.val != reversed.val)
return false;
head = head.next;
reversed = reversed.next;
}
return true;
}
public ListNode reverse(ListNode head){
ListNode res = null;
while (head != null){
res = new ListNode(head.val, res);
head = head.next;
}
return res;
}
}