数据结构C语言描述——用单链表实现多项式的相加

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#include <stdio.h>#include <stdlib.h>typedef DataType;typedef struct Node2{DataType xishu;DataType zhisu;struct Node2 *Next;}Node2;typedef struct Node2* PNode2;//多项式按照指数大小排序void insertNewPoint_link(PNode2 head,PNode2 qNode){PNode2 p=head;while (p->Next!=NULL){if (p->Next->zhisu>qNode->zhisu){qNode->Next=p->Next;p->Next=qNode;break;}p=p->Next;}if (p->Next==NULL){p->Next=qNode;}}//打印多项式void printLinkeLink(PNode2 head){PNode2 temp=head->Next;while (temp!=NULL){printf("%d %d",temp->xishu,temp->zhisu);printf("\n");temp=temp->Next;}}//多项式的加法计算void add_poly(Node2 *pa,Node2 *pb){Node2 *p=pa->Next;Node2 *q=pb->Next;Node2 *pre=pa;Node2 *u;while (p!=NULL&&q!=NULL){if (p->zhisu<q->zhisu){pre=p;p=p->Next;} else if(p->zhisu==q->zhisu){float x=p->xishu+q->xishu;if (x!=0){p->xishu=x;pre=p;} else{pre->Next=p->Next;//指向下一个结点free(p);}p=pre->Next;u=q;q=q->Next;free(u);}else{u=q->Next;q->Next=p;pre->Next=q;pre=q;q=u;}}if (q){pre->Next=q;}free(pb);}void main( ){int zhishu;float xishu;PNode2 head1=(PNode2)malloc(sizeof(struct Node2));PNode2 head2=(PNode2)malloc(sizeof(struct Node2));PNode2 tem=NULL;head1->Next=NULL;head2->Next=NULL;printf("输入链表一的系数和指数，如：3,2 以0,0结束输入：\n");scanf("%f,%d",&xishu,&zhishu);while (xishu!=0||zhishu!=0){tem=(PNode2)malloc(sizeof(struct Node2));tem->xishu=xishu;tem->zhisu=zhishu;tem->Next=NULL;insertNewPoint_link(head1,tem);scanf("%f,%d",&xishu,&zhishu);}printf("链表一按指数升序排序后的多项式为：\n");printLinkeLink(head1);printf("\n");printf("输入链表一的系数和指数，如：3,2 以0,0结束输入：\n");scanf("%f,%d",&xishu,&zhishu);while (xishu!=0||zhishu!=0){tem=(PNode2)malloc(sizeof(struct Node2));tem->xishu=xishu;tem->zhisu=zhishu;tem->Next=NULL;insertNewPoint_link(head2,tem);scanf("%f,%d",&xishu,&zhishu);}printf("链表二按指数升序排序后的多项式为：\n");printLinkeLink(head2);printf("\n");add_poly(head1,head2);printf("多项式相加后的结果为：\n");printLinkeLink(head1);}
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