Remove Nth Node From End of List
var removeNthFromEnd = function(head, n) {
if(!head.next) return null;
let prev = head;
let toDeleted = head;
let it = head;
let count = 1;
while(it.next){
it = it.next;
if(count >= n){
prev = toDeleted;
toDeleted = prev.next;
}
count++;
}
if(prev.next === toDeleted.next){
head = head.next;
return head;
}
prev.next = toDeleted.next
return head;
};remove nth node from end of list
class Solution {
public ListNode removeNthFromEnd(ListNode head, int n) {
ListNode slow = head, fast = head;
int count = 0;
while(fast != null && fast.next != null){
fast = fast.next;
if(count >= n)
slow = slow.next;
count++;
}
if(count+1 == n) return slow.next;
slow.next = slow.next.next;
return head;
}
}Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
