typedef int DataType; //數(shù)據(jù)域的類型
//復(fù)雜鏈表的數(shù)據(jù)結(jié)構(gòu)
typedef struct ComplexNode

{

DataType _data ;   // 數(shù)據(jù)
struct ComplexNode * _next;  // 指向下個節(jié)點的指針
struct ComplexNode * _random; // 指向隨機節(jié)點（可以是鏈表中的任意節(jié)點 or 空）

}ComplexNode; 

#ifndef __COMPLEX__NODE__H__
#define __COMPLEX__NODE__H__
//包含頭文件
#include <stdio.h>
#include<stdlib.h>
#include <assert.h>

typedef int DataType; //數(shù)據(jù)域的類型
//復(fù)雜鏈表的數(shù)據(jù)結(jié)構(gòu)
typedef struct ComplexNode

{
DataType _data ;    // 數(shù)據(jù)
struct ComplexNode * _next;  // 指向下個節(jié)點的指針
struct ComplexNode * _random; // 指向隨機節(jié)點（可以是鏈表中的任意節(jié)點 or 空）
}ComplexNode;

 

//創(chuàng)建一個復(fù)雜鏈表的結(jié)點
ComplexNode * BuyComplexNode(DataType x);
//打印復(fù)雜的單鏈表
void Display(const ComplexNode * cplist);
//復(fù)雜鏈表的復(fù)制
ComplexNode * CopyComplexNode(ComplexNode * cplist);

 

#endif//__COMPLEX__NODE__H__

#include "complexnode.h"

 

//創(chuàng)建一個復(fù)雜鏈表的結(jié)點

ComplexNode * BuyComplexNode(DataType x)
{
ComplexNode *cnode = (ComplexNode *)malloc(sizeof(ComplexNode));
if(cnode == NULL)//創(chuàng)建失敗
{

perror("BuyComplexNode()::malloc");
return NULL;

}

//創(chuàng)建成功
cnode->_data = x;
cnode->_next = NULL;
cnode->_random = NULL;
return cnode;

} 

//打印復(fù)雜的單鏈表

void Display(const ComplexNode * cplist)

{

ComplexNode *pnode = cplist;
while (pnode)
{
printf("%d::%d -->",pnode->_data,pnode->_random->_data);
pnode = pnode->_next;

}

printf("over\n");

}

//復(fù)雜鏈表的復(fù)制
ComplexNode * CopyComplexNode(ComplexNode * cplist)

{
ComplexNode * pold = NULL;
ComplexNode * pnew = NULL;
ComplexNode * newlist = NULL;//指向新的復(fù)雜鏈表的頭結(jié)點的指針
pold = cplist;

//創(chuàng)建一條新的復(fù)雜鏈表

while(pold != NULL)

{
ComplexNode * new_node = BuyComplexNode(pold->_data);
if(newlist == NULL)//當新的復(fù)雜鏈表中沒有結(jié)點時
{
newlist = new_node;

}

else//當新的復(fù)雜鏈表有結(jié)點時

{
ComplexNode * node = newlist;
while(node->_next != NULL)//找到最后一個結(jié)點
{
node = node->_next;
}
node->_next = new_node;//插入新的結(jié)點
}
pold = pold->_next;

 

}//創(chuàng)建新的復(fù)雜鏈表結(jié)束

 

//合并兩條復(fù)雜鏈表
pold = cplist;
pnew = newlist;
while (pold)

{

ComplexNode * curold = NULL;
ComplexNode * curnew = NULL;
curold = pold->_next;
curnew = pnew->_next;
if(pold->_next == NULL)

{

pold->_next = pnew;
pold = curold;
pnew = curnew;
break;

}

pold->_next = pnew;
pnew->_next = curold;
pold = curold;
pnew = curnew;
}//合并兩條復(fù)雜鏈表結(jié)束

 

//讓新創(chuàng)建的那條復(fù)雜鏈表上的所有結(jié)點的random指針指向相應(yīng)的結(jié)點
pold = cplist;
pnew = newlist;
while (pnew)

{

pnew->_random = pold->_random->_next;

pold = pnew->_next;
if(pold == NULL)//這是pnew的_next指針已經(jīng)指向空

{

break;

}

pnew = pold->_next;

}//結(jié)束

 

//分離合并后的復(fù)雜鏈表

pold = cplist;
pnew = newlist;
while (pold)

{

ComplexNode * curold = NULL;
ComplexNode * curnew = NULL;
if(pnew->_next == NULL)//已經(jīng)分離完成

{

pold->_next = NULL;
pnew->_next = NULL;
break;

 

}

curold = pold->_next->_next;
curnew = pnew->_next->_next;

 

pold->_next = curold;
pnew->_next = curnew;
pold = curold;
pnew = curnew;

}//分離合并的復(fù)雜鏈表結(jié)束

 

return newlist;

}

測試代碼test.c：

#include "complexnode.h"

//
//復(fù)雜鏈表的復(fù)制。?個鏈表的每個節(jié)點，有?個指向next指針指向下?個節(jié)
//點，還有?個random指針指向這個鏈表中的?個隨機節(jié)點或者NULL，現(xiàn)在要
//求實現(xiàn)復(fù)制這個鏈表，返回復(fù)制后的新鏈表。
//ps: 復(fù)雜鏈表的結(jié)構(gòu)
 

void test()

{

ComplexNode * cplist;
ComplexNode * copylist;
ComplexNode * node1;
ComplexNode * node2;
ComplexNode * node3;
ComplexNode * node4;
cplist = BuyComplexNode(1);
node1 = BuyComplexNode(2);
node2 = BuyComplexNode(3);
node3 = BuyComplexNode(4);
node4 = BuyComplexNode(5);
cplist->_next = node1;
node1->_next = node2;
node2->_next = node3;
node3->_next = node4;
cplist->_random = node3;
node1->_random = node4;
node2->_random = cplist;
node3->_random = node1;
node4->_random = node2;
Display(cplist);
copylist = CopyComplexNode(cplist);
Display(copylist);


}
int main()
{
test();
return 0;

}