本文实例为大家分享了C语言单链表实现多项式相加的具体代码，供大家参考，具体内容如下
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//多项式的相加和相乘
#include<stdio.h>
#include<stdlib.h>
#pragma warning(disable:4996)//兼容scanf
typedef struct node {
int coef;
int expon;
struct node* link;
}Polynode,*Polynomial;
Polynomial InsertPolyLinklist(Polynomial in,Polynomial Pread) {
Pread->link = in;
Pread = in;
in->link = NULL;
return Pread;
}
Polynomial ReadPoly(void) {
Polynomial Pread = (Polynomial)malloc(sizeof(Polynode));
Pread->link = NULL;
Polynomial H = Pread;
int N;
scanf("%d ", &N);
while (N--) {
Polynomial p = (Polynomial)malloc(sizeof(Polynode));
scanf("%d %d", &p->coef, &p->expon);
Pread= InsertPolyLinklist(p,Pread);
}
Polynomial F;
F = H->link;
free(H);
return F;
}
void PrintPoly(Polynomial F) {
while(F != NULL) {
printf("%d %d ", F->coef, F->expon);
F = F->link;
}
printf("\\n");
}
Polynomial Add(Polynomial p1, Polynomial p2) {
Polynomial t1=p1,t2=p2;
Polynomial p=(Polynomial)malloc(sizeof(Polynode));
p->link = NULL;
Polynomial q = p;
Polynomial read;
while (t1&&t2) {
if (t1->expon == t2->expon) {
if (t1->coef + t2->coef) {
t1->coef = t1->coef + t2->coef;
t1->expon = t1->expon;
read = t1;
q->link = read;
q = read;
t1 = t1->link;
t2 = t2->link;
}
}
else {
if (t1->expon > t2->expon){
read = t1;
q->link = read;
q = read;
t1 = t1->link;
}
else {
if (t1->expon < t2->expon) {
read = t2;
q->link = read;
q = read;
t2 = t2->link;
}
}
}
}
if (t1) {
q->link = t1;
}
if (t2) {
q->link = t2;
}
Polynomial F = p->link;
free(p);
return F;
}
int main(void) {
Polynomial p1, p2, pp, ps;
p1 = ReadPoly();
PrintPoly(p1);
p2 = ReadPoly();
PrintPoly(p2);
pp = Add(p1, p2);
PrintPoly(pp);
// ps = Mult(p1, p2);
// PrintPoly(ps);
return 0;
}
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参考
MOOC 浙大数据结构
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