53 lines
1.3 KiB
C
53 lines
1.3 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 MAX 100
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int je_cislo(const char *u) {
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char *koniec;
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strtod(u, &koniec);
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return *koniec == '\0';
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}
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int main() {
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char riadok[MAX];
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double cislo1, cislo2, vysledok, skutocny_vysledok;
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char operacia;
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while (fgets(riadok, MAX, stdin) != NULL) {
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if (strlen(riadok) <= 1){
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break;
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}
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if (sscanf(riadok, " %lf %c %lf = %lf", &cislo1, &operacia, &cislo2, &vysledok) != 4) {
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printf("CHYBA\n");
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continue;
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}
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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;
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skutocny_vysledok = round(skutocny_vysledok * 100) / 100;
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break;
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case '/': skutocny_vysledok = cislo1 / cislo2;
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skutocny_vysledok = round(skutocny_vysledok * 100) / 100;
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break;
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default:
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printf("CHYBA\n");
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continue;
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}
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if (fabs(skutocny_vysledok - vysledok) < 0.00001) {
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printf("OK\n");
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}
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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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}
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