C語言數(shù)據(jù)結(jié)構(gòu)實現(xiàn)鏈表逆序并輸出
將一個鏈表逆序并輸出。可以用兩種方法來實現(xiàn),第一種是借助了一個新的空鏈表;第二種是在原來鏈表的基礎(chǔ)上直接實現(xiàn)逆序。下面百分網(wǎng)小編帶大家一起來看看詳細(xì)內(nèi)容,希望對大家有所幫助!想了解更多相關(guān)信息請持續(xù)關(guān)注我們應(yīng)屆畢業(yè)生考試網(wǎng)!
實例代碼:
頭文件:
#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>
typedef int ElemType;
typedef struct Node
{/pic/p>
ElemType value; /pic/p>
struct Node *next;/pic/p>
}Node,*ptr_Node;
typedef struct LinkList
{/pic/p>
ptr_Node head; /pic/p>
ptr_Node tail;/pic/p>
int length; /pic/p>
}LinkList,*ptr_LinkList;
ptr_LinkList CreateList(void)
{/pic/p>
ptr_LinkList linklist;
linklist=(LinkList *)malloc(sizeof(LinkList));
if(!linklist)
{
printf("allocation failed.\n");
}
linklist->head=NULL;
linklist->tail=NULL;
linklist->length=0;
return linklist;
}
bool IsListEmpty(ptr_LinkList linklist)
{/pic/p>
if(linklist->length==0)
{
return true;
}
return false;
}
void InsertListHead(ptr_LinkList linklist,ElemType element)
{/pic/p>
ptr_Node ptr_node;
ptr_node=(Node *)malloc(sizeof(Node)); /pic/p>
if(!ptr_node)
{
printf("allocation failed.\n");
}
else
{
ptr_node->value=element;
if(linklist->length==0)
{
linklist->head=ptr_node;
linklist->tail=linklist->head;
linklist->tail->next=NULL;
}
else
{
ptr_node->next=linklist->head;
linklist->head=ptr_node; /pic/p>
}
linklist->length++; /pic/p>
}
}
void InsertListTail(ptr_LinkList linklist,ElemType element)
{
ptr_Node ptr_node;
ptr_node=(Node *)malloc(sizeof(Node)); /pic/p>
if(!ptr_node)
{
printf("allocation failed.\n");
}
else
{
ptr_node->value=element;
if(linklist->length==0)
{
linklist->head=ptr_node;
linklist->tail=linklist->head;
linklist->tail->next=NULL;
}
else
{
linklist->tail->next=ptr_node;
linklist->tail=ptr_node; /pic/p>
}
linklist->length++; /pic/p>
}
}
void InsertListPosition(ptr_LinkList linklist,int pos,ElemType element)
{
int i;
ptr_Node ptr_node;
ptr_Node temp_ptr_node;
if(pos<1 || pos>linklist->length)
{
printf("The insert position is invalidate.\n");
}
else
{
ptr_node=(Node *)malloc(sizeof(Node)); /pic/p>
if(!ptr_node)
{
printf("allocation failed.\n");
}
ptr_node->value=element;
if(pos==1)
{
InsertListHead(linklist,element);
}
else if(pos==linklist->length)
{
InsertListTail(linklist,element);
}
else
{
temp_ptr_node=linklist->head;
for(i=1;i<pos-1;i++)
{/pic/p>
temp_ptr_node=temp_ptr_node->next;
}
ptr_node->next=temp_ptr_node->next;
temp_ptr_node->next=ptr_node;
linklist->length++;
}
}
}
void Destroy(ptr_LinkList linklist)
{/pic/p>
ptr_Node p=linklist->head;
ptr_Node q;
while(p)
{/pic/p>
q=p->next;
free(p);
p=NULL;
p=q;
}
}
void Traverse(ptr_LinkList linklist)
{/pic/p>
ptr_Node p;
p=linklist->head;
while(p)
{
printf("%4d",p->value);
p=p->next;
}
}
頭文件中實現(xiàn)了鏈表的幾個基本的操作,有的是必須的,有些是非必須的。
實現(xiàn)代碼:
#include "stdafx.h"
#include "LinkList.h"
#include <conio.h>
ptr_LinkList InvertList(ptr_LinkList list)
{/pic/p>
ptr_LinkList inverted_linklist;
ptr_Node p;
p=list->head;
inverted_linklist=CreateList();/pic/p>
while(p)
{/pic/p>
InsertListHead(inverted_linklist,p->value);
p=p->next;
}
return inverted_linklist;
}
void InvertLinkList(ptr_LinkList linklist)
{/pic/p>
ptr_Node p,q,r,m;
m=p=linklist->head;
q=p->next;
r=q->next;
while(r)
{/pic/p>
q->next=p;
p=q;
q=r;
r=r->next;
}
q->next=p; /pic/p>
linklist->head=q;
linklist->tail=m;
linklist->tail->next=NULL;
}
int _tmain(int argc, _TCHAR* argv[])
{
ptr_LinkList linklist;
ptr_LinkList list;
linklist=CreateList();
if(linklist)
{
printf("We have created a new linklist.\n");
}
InsertListHead(linklist,12);
InsertListHead(linklist,35);
InsertListHead(linklist,66);
InsertListHead(linklist,06);
InsertListHead(linklist,11);
InsertListHead(linklist,54);
InsertListHead(linklist,79);
Traverse(linklist);
printf("\n");
printf("The first method:\n");
list=InvertList(linklist);
Traverse(list);
printf("\n");
printf("The second method:\n");
InvertLinkList(linklist);
Traverse(linklist);
printf("\n");
getch();
return 0;
}
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