删除后显示在用C链表 [英] Display after deletion in linked list in C

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本文介绍了删除后显示在用C链表的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

事实上,这是另外一个问题,但它改变了,所以我决定开一个新的问题。

我的code是

  typedef结构inner_list
{
 诠释计数;
 字符字[100];
 inner_list *接下来的;
} inner_list;
typedef结构outer_list
{
 字符字[100];
 inner_list *头;
 诠释计数;
 outer_list *接下来的;
} outer_list;
无效delnode(outer_list **头,炭NUM [100])//感谢尼尔·利维和杰里米P.都
{
    outer_list *温度,*米;
    M = TEMP = *头; / *#FIX 1 * /
    而(温度!= NULL){
        如果(STRCMP(TEMP-GT&;文字,NUM)== 0){
            如果(临时== *头){
                delinner(TEMP-GT&;头); / *#FIX 2 * /
    *头= TEMP->接下来,                免费(TEMP);
                返回;
            }其他{
                delinner(TEMP-GT&;头); / *#FIX 2 * /
    M->接下来= TEMP->接下来,                免费(TEMP);
                返回;
            }
        }其他{
            M =温度;
            TEMP = TEMP->接下来,
        }
    }
    的printf(元素%S NOT FOUND,NUM);
}
无效delinner(inner_list *头){/ *#FIX 2 * /
    inner_list *温度;
    TEMP =头;
    而(温度!= NULL){
        头= TEMP->接下来,
        免费(TEMP);
        TEMP =头;
    }
}
无效delnode2(outer_list *了,inner_list **头,炭NUM [100])
{
    inner_list * TEMP2,*温度,*米;
 outer_list * P;
 P =起来; 而(P!= NULL){M = TEMP = = TEMP2 P->头;
    而(温度!= NULL){
        如果(STRCMP(TEMP-GT&;文字,NUM)== 0){
            如果(临时==(*头)){
                *头= TEMP->接下来,                免费(TEMP);
                返回;
            }其他{
                M->接下来= TEMP->接下来,
                免费(TEMP);
                返回;
            }
        }其他{
            M =温度;
            TEMP = TEMP->接下来,
        }
    }
 p值=对 - >接着,
 }
    的printf(元素%S NOT FOUND,NUM);
}
无效print_node(outer_list * PARENT_NODE)
{
 而(PARENT_NODE!= NULL){
 的printf(%S \\ t%d个\\ t的,parent_node->的话,parent_node->计数);    inner_list * child_node = parent_node->头;
 的printf(名单);
 如果(child_node == NULL){printf的(BUARADA);} 而(child_node!= NULL){
  的printf(%S-%D,child_node->的话,child_node->计数);        child_node = child_node->接下来,        如果(child_node!= NULL){
            的printf( - >中);
        }
 }
    的printf(\\ n);
 PARENT_NODE = parent_node->接下来,
 }
}

虽然从外部列表中删除一个元素,我也试图从inner_list的删除相同的元素了。

例如: - 比方说,AAA是outer_list链表中的一个元素,让我们点它与outer_list * P - 这个AAA也可在inner_list链表了。 (也可以是在p->头或其他innerlist。)现在,棘手的部分一次。我试图用outer_list删除,但每当我删除inner_list它给出了一个错误的头元素的运用相同的规则。哪里是在print_node或delnode2错误的事情?

编辑:
实际上,如果它一outer_list节点删除inner_list的内部应该过于除去链表。这就是为什么使用delinner方法。

例如:

 外内
AAA BB-> CC
BB&AAA- GT; CC当我想删除AAA的结果应该是:
外内
BB CC


解决方案

什么是 inner_list **头 参数delnode()?我认为最高是外单节点上,从它的内部列表要删除包含 NUM 只是不适合这张图片。而你似乎没有使用它无论如何正确。我重写功能了一下,省略该参数,注释行发生变化,并给予更有意义的名称:

 无效del_inner_node(outer_list *了,烧焦NUM [100])
{
  inner_list *温度,*米;
  outer_list * P;
  P =起来;  而(P!= NULL){
    M = TEMP = P->头;
    而(温度!= NULL){
      如果(STRCMP(TEMP-GT&;文字,NUM)== 0){
        如果(临时== p型>头){//指对 - >头
          P->头= TEMP->接下来, //指对 - >头
          免费(TEMP);
          返回;
        }其他{
          M->接下来= TEMP->接下来,
          免费(TEMP);
          返回;
        }
      }其他{
        M =温度;
        TEMP = TEMP->接下来,
      }
    }
    p值=对 - >接着,
  }
  的printf(元素%S NOT FOUND,NUM);
}

注意 TEMP2 未使用,所以我删除了。

现在,在你的code还有就是 delnode2 没有呼叫( del_inner_node )。其实你可以在 delnode 调用它,以防查找的字符串未在当前外节点发现:

 无效del_all_nodes(outer_list **头,炭NUM [100])//感谢尼尔·利维和杰里米P.都
{
    ...
    而(温度!= NULL){
        如果(STRCMP(TEMP-GT&;文字,NUM)== 0){
            ...
        }其他{
            del_inner_node(温度,NUM);
            M =温度;
            TEMP = TEMP->接下来,
        }
    }
    ...
}

这样你可以删除包含AAA通过一个调用的所有节点:

  outer_list *头;
//设置列表
del_all_nodes(安培;头,AAA);

Actually this was another problem but it changed so I decided to open a new question.

My code is

typedef struct inner_list 
{
 int count;
 char word[100];
 inner_list*next;
} inner_list;
typedef struct outer_list
{
 char word [100];
 inner_list * head;
 int count;
 outer_list * next; 
} outer_list;
void delnode(outer_list **head,char num[100])//thanks to both Nir Levy and Jeremy P.
{
    outer_list *temp, *m;
    m=temp=*head; /*FIX #1*/
    while(temp!=NULL) {
        if(strcmp(temp->word,num)==0) {
            if(temp==*head) {
                delinner(temp->head); /* FIX#2 */
    *head=temp->next;

                free(temp);
                return;
            } else {
                delinner(temp->head); /* FIX#2 */ 
    m->next=temp->next;

                free(temp);
                return;
            }
        } else {
            m=temp;
            temp= temp->next;
        }
    }
    printf(" ELEMENT %s NOT FOUND ", num);
}
void delinner(inner_list *head) { /* FIX#2 */
    inner_list *temp;
    temp=head;
    while(temp!=NULL) {
        head=temp->next;
        free(temp);
        temp=head;
    }
}
void delnode2(outer_list *up,inner_list **head,char num[100])
{
    inner_list *temp2,*temp, *m;
 outer_list *p;
 p = up;

 while(p!=NULL){m=temp=temp2=p->head; 
    while(temp!=NULL) {
        if(strcmp(temp->word,num)==0) {
            if(temp==(*head)) {
                *head=temp->next;

                free(temp);
                return;
            } else {
                m->next=temp->next;
                free(temp);
                return;
            }
        } else {
            m=temp;
            temp= temp->next;
        }
    }
 p=p->next;
 }
    printf(" ELEMENT %s NOT FOUND ", num);
}
void print_node(outer_list *parent_node) 
{ 


 while(parent_node!=NULL){
 printf("%s\t%d\t", parent_node->word, parent_node->count);

    inner_list *child_node = parent_node->head;
 printf("list: ");
 if(child_node ==NULL){printf("BUARADA");}

 while (child_node != NULL) {
  printf("%s-%d", child_node->word,child_node->count);

        child_node = child_node->next;

        if (child_node != NULL) {
            printf("->");
        }
 }
    printf("\n");
 parent_node = parent_node->next;
 }
}

While deleting an element from outer list I am also trying the delete the same element from inner_list too.

For example: - Let's say aaa is an element of outer_list linked list and let's point it with outer_list *p - This aaa can also be in an inner_list linked list too. (it can be in p->head or another innerlist.) Now, the tricky part again. I tried to apply the same rules with outer_list deletion but whenever i delete the head element of inner_list it gives an error. Where is the wrong thing in print_node or delnode2?

Edit: actually if it a outer_list node deleted the linked list of inner_list inside of it should be removed too. This is why delinner method used.

For example:

outer     inner
aaa       bb->cc
bb        aaa->cc

when i wanted to delete "aaa" The result should be:
outer     inner
bb         cc 

解决方案

What is the inner_list **head parameter of delnode() ? I assume that up is the outer list node, from whose inner list you want to remove the node containing the string given in num. head just doesn't fit into this picture. And you don't seem to be using it properly anyway. I rewrote the function a bit, omitting the parameter, changing the commented lines, and giving more meaningful names:

void del_inner_node(outer_list *up, char num[100])
{
  inner_list *temp, *m;
  outer_list *p;
  p = up;

  while (p != NULL) {
    m = temp = p->head;
    while(temp!=NULL) {
      if(strcmp(temp->word,num)==0) {
        if(temp==p->head) {   // refer to p->head
          p->head=temp->next; // refer to p->head
          free(temp);
          return;
        } else {
          m->next=temp->next;
          free(temp);
          return;
        }
      } else {
        m=temp;
        temp= temp->next;
      }
    }
    p=p->next;
  }
  printf(" ELEMENT %s NOT FOUND ", num);
}

Note that temp2 is not used, so I removed it.

Now, in your code there is no call to delnode2 (del_inner_node). You could actually call it within delnode, in case the searched string was not found in the current outer node:

void del_all_nodes(outer_list **head,char num[100])//thanks to both Nir Levy and Jeremy P.
{
    ...
    while(temp!=NULL) {
        if(strcmp(temp->word,num)==0) {
            ...
        } else {
            del_inner_node(temp,num);
            m=temp;
            temp= temp->next;
        }
    }
    ...
}

This way you can remove all nodes containing "aaa" with a single call:

outer_list *head;
// set up the lists
del_all_nodes(&head, "aaa");

这篇关于删除后显示在用C链表的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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