pvjc22/du3/program.c

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2022-03-17 18:44:41 +00:00
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
#define SIZE 30
int main(){
char pol[SIZE];
memset(pol,' ',SIZE);
pol[SIZE]='\0';
int ch=0;
for(int idx=0;1;idx++ ){
ch=getchar();
if(ch==EOF||ch==' ')break;
pol[idx]=ch;
}
printf("%s\n",pol);
int koef=0;
for(int i=0;i<strlen(pol);i++)if(pol[i]=='\n')koef++;
float x=0;
char *end = NULL;
char *start = pol;
x=strtof(start,&end);
start=end;
float num=0;
for(int i=0;i<koef;i++){
float p=1, n=0;
n=strtof(start,&end);
if(n)start=end;
else break;
for(int idx=(koef-i)-1;idx>0;idx--)p*=x;
num+=p*n;
}
//num=34.577;
num=round(num*100)/100;
printf("%.2f\n", num);
return EXIT_SUCCESS;
}