Unable to pass all test cases

#1

Mam im unable to pass all test cases .Also how can i implement this question using inbuild linked list of java.
please provide me the code for the same using inbuild linked list class of java.

#2

the error is that your code is not able to maintain the relative order of the numbers in which they have arrived.
like for this test case:
6
2 4 1 3 6 8
output should be: 1 3 2 4 6 8

Also to implement it using inbuilt class of ll is easy. You can use the functions such as add remove etc directly.

#3

yes mam but im unable to implement this question as i m swaping the data .Can u please provide me the code so that i can understand the syntax of using inbuilt class of java