数据结构算法 LinkList (Insertion Sort List 链表插入排序)

Posted 2020-10-26 仅供记录,日常灌水

将一个单链表进行处理后，所得结果为一有序链表

Solution:

将原始链表逐个查询，插入新链表，在插入的同时对链表进行排序。时间复杂度O(n*n)

public ListNode insertionSortList(ListNode head) {
         
        ListNode dummy = new ListNode(0);
         
        while (head != null) {
            ListNode node = dummy;
            while (node.next != null && node.next.val < head.val) {
                node = node.next;
            }
            ListNode temp = head.next;
            head.next = node.next;
            node.next = head;
            head = temp;
        }

        return dummy.next;
    }