50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#define MAX 256
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double zaokruhlenie_vysledku(double x) {
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return round(x * 100.0) / 100.0;
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}
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double vykonaj_operaciu(double a, char op, double b) {
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if (op == '+') return a + b;
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if (op == '-') return a - b;
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if (op == '*') return a * b;
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if (op == '/') return a / b;
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return 0;
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}
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int main() {
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char riadok[MAX];
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while (1) {
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if (fgets(riadok, MAX, stdin) == NULL)
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break;
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if (strcmp(riadok, "\n") == 0)
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break;
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double cislo1, cislo2, vysledok;
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char operacia;
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int nacitane = sscanf(riadok, "%lf %c %lf = %lf", &cislo1, &operacia, &cislo2, &vysledok);
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if (nacitane != 4) {
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printf("CHYBA\n");
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continue;
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}
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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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double spravnyVysledok = vykonaj_operaciu(cislo1, operacia, cislo2);
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if (zaokruhlenie_vysledku(spravnyVysledok) == zaokruhlenie_vysledku(vysledok)) {
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printf("OK\n");
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} else {
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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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} |