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