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

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;
    }

 

posted @ 2018-03-06 23:25  WilliamCui  阅读(208)  评论(0编辑  收藏  举报