Digital Marketing

public ListNode reverseList(ListNode head) {
    /* recursive solution */
    return reverseListInt(head, null);

private ListNode reverseListInt(ListNode head, ListNode newHead) {
    if (head == null)
        return newHead;
    ListNode next =; = newHead;
    return reverseListInt(next, head);

Popular posts from this blog

How to fix Google Apps Script: Script function not found: doGet

Creating sort index in MySQL

How to fix: df shows no file systems processed on Linux