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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 ListNode oddEvenList(ListNode head) {
ListNode odd = new ListNode(), p1 = odd;
ListNode even = new ListNode(), p2 = even;
int count = 1;
while (head != null){
if(count % 2 != 0){
p1.next = head;
p1 = p1.next;
}
else{
p2.next = head;
p2 = p2.next;
}
count++;
head = head.next;
}
p1.next = even.next;
p2.next = null;
return odd.next;
}
}