pvjc24/cv3/program.c

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

#define SIZE_OF_ARRAY 100

int main()
{
    double result_of_main=0;
    double array_of_numbers[SIZE_OF_ARRAY];
    int counter=0;
    int result;
    double pow_result;
    while(1){
        double x=0;
        result=reading_input(&x);
        if(result==0||result==2){
            break;
        }
        array_of_numbers[counter]=x;
        counter++;
    }
    if(result==0){
        if(counter==0){
            printf("Nepodarilo sa nacitat zaklad x\n");
        }else{
            printf("Nepodarilo sa nacitat polynom na %d mieste.\n",counter);
        }
        return 0;
    }
    for(int j=1; j<counter; j++){
        result_of_main += array_of_numbers[j]*pow(array_of_numbers[0],(counter-j)-1);
    }
    printf("Vysledok je: %.2f\n",round(result_of_main * 100) / 100);
    return 0;
}
int reading_input(double *number){
    char buffer[SIZE_OF_ARRAY];
      if(fgets(buffer,SIZE_OF_ARRAY,stdin)==NULL){
        return 2;
      }

    for(int j=0; buffer[j]!='\0'; j++){
        if (buffer[j]>='0'&&buffer[j]<='9') {
            continue;
        }
        if (buffer[j]=='.') {
            continue;
        }
        if(buffer[j]=='\n'){
            buffer[j]='\0';
            break;
        }

        return 0;
    }
    if(buffer[0]=='\0'){
        return 2;
    }
    *number=atof(buffer);
    return 1;
}