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  • [012]链表笔记--在链表中插入一个节点

    插入的数目为num,如果比head小,则插在链表头;如果比链表中元素都大,则插在结尾;否则插在链表中;

    代码如下:

     1 Link* Link::Add(Link* pLink, int num) {
     2     Link *p1,*p2;
     3     p1 = pLink;
     4     Link *p0 = new Link;
     5     p0->id = num;
     6     
     7     while ((p0->id > p1->id) && (p1->next != NULL)) {
     8         p2 = p1;
     9         p1 = p1->next;
    10     }
    11     // 插在表头或中间
    12     if(p0->id <= p1->id) {
    13         // 表头
    14         if (pLink == p1) {
    15             p0->next = p1;
    16             pLink = p0;
    17         }
    18         else{
    19             p2->next = p0;
    20             p0->next = p1;
    21         }
    22     }
    23     // 插入结尾
    24     else {
    25         p1->next = p0;
    26         p0->next = NULL;
    27     }
    28 return pLink;
    29 }
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  • 原文地址:https://www.cnblogs.com/hustcser/p/3941952.html
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