pvjc24/a1/program.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <math.h>
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char* check_math_problem(const char* problem) {
if (strlen(problem) == 0) {
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return "CHYBA";
}
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double n1, n2, res;
char sing, equel;
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if(sscanf(problem, "%lf %c %lf %c %lf", &n1, &sing, &n2, &equel, &res) != 5) {
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return "CHYBA";
}
double result;
switch (sing) {
case '+':
result = n1 + n2;
break;
case '-':
result = n1 - n2;
break;
case '*':
result = n1 * n2;
break;
case '/':
if (fabs(n2) < 1e-9) {
return "ZLE";
}
result = n1 / n2;
break;
default:
return "CHYBA";
}
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if (fabs(result - res) < 0.01) {
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return "OK";
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} else {
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return "ZLE";
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}
}
int main() {
char problem[100];
while (true) {
fgets(problem, sizeof(problem), stdin);
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if (strlen(problem) <= 1) {
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break;
}
printf("%s\n", check_math_problem(problem));
}
return 0;
}