Error while reading input

#1

How to pass input scanner is not working in my case

#2

hello @himesh.sharma25

pls share ur code , i will check .

#3

import java.util.*; public class Main { public static Node insert(int n, Scanner scanner){ Node head = null ; Node tail = null; int data = scanner.nextInt(); int index = 0; while(index < n) { Node newNode = new Node<>(data); if (head == null) { head = newNode; tail = newNode; } else { tail.next = newNode; tail = tail.next; } data = scanner.nextInt(); index++; } return head; } public static void printLL(Node head){ while (head != null){ System.out.print(head.data + " "); head=head.next; } } public static void main (String args[]) { Scanner s = new Scanner(System.in); int size = s.nextInt(); Node head = insert(size, s); printLL(oddEven(head)); } private static Node oddEven(Node head){ if(head == null){ return null; } Node even = head.next, odd = head, evenHead = even; while(even != null && even.next != null){ odd.next = even.next; odd = odd.next; even.next = odd.next; even = even.next; } odd.next = evenHead; return head; } } class Node { Integer data; Node next; Node(Integer data) { this.data = data; } }

#4

check now->

u were reading n+1 input …

also always share ur code using cb ide.

#5

thanks its working now

#6

Its giving wrong output cant think of scenarios of which it is failing

#7

try this case->
6
2 1 3 4 5 6

#8

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