设计函数求一元多项式的导数。
以指数递降方式输入多项式非零项系数和指数(绝对值均为不超过1000的整数)。数字间以空格分隔。
以与输入相同的格式输出导数多项式非零项的系数和指数。数字间以空格分隔,但结尾不能有多余空格。
12 3 -10 1 6 0
#include <bits/stdc++.h> typedef struct Type { int num, index, der; struct Type *next; }Type; int main() { Type *L, *rearptr, *curptr; int nm, ide; L = rearptr = (Type *)malloc(sizeof(Type)); while(scanf("%d %d", &nm, &ide) != EOF) { curptr = (Type *)malloc(sizeof(Type)); curptr->num = nm, curptr->index = ide; curptr->der = nm * ide; rearptr->next = curptr; rearptr = curptr; } rearptr->next = NULL; Type *p = L->next; int dex = 0; while(p) { if(p->index - 1 >= 0) { if(dex) printf(" "); printf("%d %d", p->der, p->index-1); dex++; } p = p->next; } if(L->next == NULL || L->next->index == 0) printf("0 0"); }