98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <math.h>
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#define TOLERANCE 0.01
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float zaokruhli(float cislo){
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return roundf(cislo * 100) / 100;
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}
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int main(){
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char riadok[100];
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while (fgets(riadok, sizeof(riadok), stdin)){
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riadok[strcspn(riadok, "\n")] = 0;
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if (strlen(riadok) == 0){
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break;
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}
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char *ptr = riadok;
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while (*ptr == ' ') ptr++;
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char *endptr;
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float cislo1 = strtof(ptr, &endptr);
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if (ptr == endptr){
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printf("CHYBA\n");
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continue;
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}
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ptr = endptr;
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while (*ptr == ' ') ptr++;
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char operacia = *ptr;
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if (operacia != '+' && operacia != '-' && operacia != '*' && operacia != '/') {
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printf("CHYBA\n");
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continue;
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}
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ptr++;
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while (*ptr == ' ') ptr++;
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float cislo2 = strtof(ptr, &endptr);
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if (ptr == endptr){
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printf("CHYBA\n");
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continue;
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}
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ptr = endptr;
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while (*ptr == ' ') ptr++;
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if (*ptr != '='){
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printf("CHYBA\n");
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continue;
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}
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ptr++;
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while (*ptr == ' ') ptr++;
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float zadany_vysledok = strtof(ptr, &endptr);
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if (ptr == endptr || *endptr != '\0'){
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printf("CHYBA\n");
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continue;
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}
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float skutocny_vysledok = 0;
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int chyba = 0;
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switch (operacia){
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case '+': skutocny_vysledok = cislo1 + cislo2; break;
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case '-': skutocny_vysledok = cislo1 - cislo2; break;
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case '*': skutocny_vysledok = cislo1 * cislo2; break;
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case '/':
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if (cislo2 == 0){
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skutocny_vysledok = INFINITY;
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}
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else
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{
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skutocny_vysledok = cislo1 / cislo2;
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}
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break;
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default: chyba = 1;
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}
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if(chyba){
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printf("CHYBA\n");
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continue;
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}
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if(zaokruhli(skutocny_vysledok) == zaokruhli(zadany_vysledok)){
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printf("OK\n");
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}
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else
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{
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printf("ZLE\n");
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}
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}
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return 0;
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}
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