76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#define SIZE_OF_ARRAY 100
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#define LINE_SIZE 2
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double powering(double, int);
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int main()
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{
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double result_of_main=0;
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double array_of_numbers[SIZE_OF_ARRAY];
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int counter=0;
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int result;
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double pow_result;
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while(1){
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double x=0;
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result=reading_input(&x);
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if(result==0||result==2){
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break;
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}
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array_of_numbers[counter]=x;
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counter++;
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}
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if(result==0){
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if(counter==0){
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printf("Nepodarilo sa nacitat zaklad x\n");
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}else{
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printf("Nepodarilo sa nacitat polynom na %d mieste.\n",counter);
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}
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return 0;
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}
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for(int j=1; j<counter; j++){
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//double rawPow = pow(array_of_numbers[0],(counter-j)-1);
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//double roundedPos = round(rawPow*100)/100;
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double true_power=powering(array_of_numbers[0],(counter-j)-1);
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// printf("RAW: %f, ROUNDED: %f, true %f\n", rawPow, roundedPos,true_power);
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result_of_main += array_of_numbers[j]*true_power;
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}
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printf("Vysledok je: %.2f\n",round(result_of_main * 100) / 100);
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return 0;
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}
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//ceil(result_of_main * 100) / 100)
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int reading_input(double *number){
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char buffer[SIZE_OF_ARRAY];
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fgets(buffer,SIZE_OF_ARRAY,stdin);
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for(int j=0; buffer[j]!='\0'; j++){
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if (buffer[j]>='0'&&buffer[j]<='9') {
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continue;
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}
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if (buffer[j]=='.') {
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continue;
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}
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if(buffer[j]=='\n'){
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buffer[j]='\0';
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break;
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}
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return 0;
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}
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if(buffer[0]=='\0'){
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return 2;
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}
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*number=atof(buffer);
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return 1;
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}
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double powering(double number, int counter){
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double result=1;
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for(int i=0; i<counter; i++){
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result =result * number;
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}
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return result;
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}
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