//List.c
#include "List.h"
#include
#include
#include
/*struct Node
{
ElementType Element;
Position Next;
};*/
void CreateList(List *L,int n)
{
Position P,P1;
int i;
*L=(Position)malloc(sizeof(struct Node));
(*L)->Next=NULL;
P1=*L;
printf("请输入%d对数据(以空格隔开):\n",n); //没问题
for(i=n;i>0;i--)
{
//P=(Position)malloc(sizeof(struct Node));
//scanf("%d",&P->Element); //前插
//P->Next=(*L)->Next;
//(*L)->Next=P;
P=(Position)malloc(sizeof(struct Node));
scanf("%d",&P->Cofficient);
scanf("%d",&P->Exponent);
P->Next=P1->Next; //后插
P1->Next=P;
P1=P;
}
}
void PrintList(List L)
{
printf("已保存链表\n");
Position P;
P=L->Next;
while(P->Next!=NULL)
{
printf("%d ",P->Cofficient); //没问题
printf("%d ",P->Exponent);
P=P->Next;
}
printf("%d ",P->Cofficient); //没问题
printf("%d ",P->Exponent);
}
void FatalError(char a[])
{
printf("%s",a); //没问题
}
int IsEmpty(List L)
{
return L->Next==NULL; //没问题
}
int IsLast(Position P,List L)
{
return P->Next==NULL; //没问题
}
List MakeEmpty(List L)
{
List q,p;
p=L->Next;
while(p!=NULL)
{ //没问题
q=p->Next;
free(p);
p=q;
}
L->Next=NULL;
return L;
}
Position Find(ElementType X,List L)
{
Position P;
P=L->Next;
while((P!=NULL)&&(P->Exponent!=X)) //没问题
{
P=P->Next;
}
return P;
}
Position findPrevious(ElementType X,List L)
{
Position P;
P=L;
while((P->Next!=NULL)&&(P->Next->Exponent!=X)) //没问题
{
P=P->Next;
}
return P;
}
void Delete(ElementType X,ElementType Y,List L)
{
Position P,TmpCell;
P=findPrevious(X,L);
if(!IsLast(P,L))
{
TmpCell=P->Next;
P->Next=TmpCell->Next; //没问题
free(TmpCell);
}
}
void DeleteList(List L)
{
Position P,Q;
P=L->Next;
L->Next=NULL;
while(P!=NULL)
{
Q=P->Next; //没问题
free(P);
P=Q;
}
}
void Insert(ElementType X,ElementType Y,List L,Position P)
{
if(L==NULL)
{
return;
}
Position TmpCell;
TmpCell=malloc(sizeof(struct Node));
if(TmpCell!=NULL)
{
TmpCell->Next=P->Next; //前插,没问题
TmpCell->Cofficient=X;
TmpCell->Exponent=Y;
P->Next=TmpCell;
}
else
{
FatalError("out of space!!!");
}
}
void InsertH(ElementType X,ElementType Y,List L,Position P)
{
if(L==NULL)
{
return;
}
Position TmpCell;
List q;
TmpCell=malloc(sizeof(struct Node));
q=L; //后插,没问题
while(q->Next!=NULL)
{
q=q->Next;
}
q->Next=TmpCell;
TmpCell->Next=NULL;
TmpCell->Cofficient=X;
TmpCell->Exponent=Y;
}
void CreateEmptyList(List *L)
{
*L=(Position)malloc(sizeof(struct Node)); //没问题
(*L)->Next=NULL;
}
List MultPolynomial(List L1,List L2)
{
List p=L1->Next;
List q=L2->Next;
List L3;
List SOM;
int Cof,Exp;
CreateEmptyList(&L3);
while(p!=NULL)
{ //没问题
q=L2->Next;
while(q!=NULL)
{
Cof=p->Cofficient*q->Cofficient;
Exp=p->Exponent+q->Exponent;
//printf("1-1") ;
if((SOM=Find(Exp,L3))==NULL)
{
InsertH(Cof,Exp,L3,L3);
}
else
{
SOM->Cofficient=+Cof;
SOM->Exponent=+Exp;
}
q=q->Next;
}
p=p->Next;
}
return L3;
}
-------------------------我是分割线--------------------------
//List.h
#ifndef _LIST_H_
typedef int ElementType;
struct Node;
typedef struct Node *PtrToNode;
typedef PtrToNode List;
typedef PtrToNode Position;
/*struct Node
{
ElementType Element;
Position Next;
};*/
struct Node
{
ElementType Cofficient;
ElementType Exponent;
Position Next;
};
void CreateList(List *L,int n);
void PrintList(List L);
List MakeEmpty(List L);
void CreateEmptyList(List *L);
int IsEmpty(List L);
int IsLast(Position P,List L);
Position Find(ElementType X,List L);
void Delete(ElementType X,ElementType Y,List L);
Position FindPrevious(ElementType X,List L);
void Insert(ElementType X,ElementType Y,List L,Position P);
void InsertH(ElementType X,ElementType Y,List L,Position P);
void DeleteList(List L);
Position Header(List L);
Position First(List L);
Position Advance(Position P);
ElementType Retrieve(Position P);
List MultPolynomial(List L1,List L2);
#endif
-------------------------我是分割线--------------------------
//main.c
#include
#include
#include
#include "List.h"
int main(void)
{
//char a[]="Error";
//int i;
// FatalError(a);
//List L,q;
// CreateList(&L,8);
// PrintList(L);
// InsertH(6,L,L);
//printf("%d\n",IsEmpty(L));
//q=Find(7,L);
//i=q->Element;
//printf("%d",i);
// PrintList(L);
// MakeEmpty(L);
//DeleteList(L);
//printf("%d\n",IsEmpty(L));
List L1_1,L2_1,L3_1;
ElementType n1,n2;
printf("请输入第一个多项式的项数:");
scanf("%d",&n1);
printf("\n");
printf("请输入第一个多项式的系数和指数:");
printf("\n");
CreateList(&L1_1,n1);
PrintList(L1_1);
printf("\n%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%");
printf("\n请输入第二个多项式的项数:");
scanf("%d",&n2);
printf("\n");
printf("请输入第二个多项式的系数和指数:");
printf("\n");
CreateList(&L2_1,n2);
PrintList(L2_1);
printf("\n%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%");
L3_1=MultPolynomial(L1_1,L2_1);
PrintList(L3_1);
}
-------------------------我是分割线--------------------------
多项式1:10 x^1000+5 x^14+1 x^0
多项式2:3 x^1990-2 x^1492+11 x^1+5 x^0
运行结果:
请输入第一个多项式的项数:3
请输入第一个多项式的系数和指数:
请输入3对数据(以空格隔开):
10 1000 5 14 1 0
已保存链表
10 1000 5 14 1 0
%%%%%%%%%%%%%%%%%%
请输入第二个多项式的项数:4
请输入第二个多项式的系数和指数:
请输入4对数据(以空格隔开):
3 1990 -2 1492 11 1 5 0
已保存链表
3 1990 -2 1492 11 1 5 0
%%%%%%%%%%%%%%%%%%已保存链表
30 2990 -20 2492 110 1001 50 1000 15 2004 -10 1506 55 15 25 14 3 1990 -2 1492 11 1 5 0
--------------------------------
Process exited after 40.15 seconds with return value 2
请按任意键继续. . .