81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <ctype.h>
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int main() {
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char line[256];
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while (fgets(line, sizeof(line), stdin) != NULL) {
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//nothing
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line[strcspn(line, "\n")] = 0;
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//empty line
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if (strlen(line) == 0) {
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break;
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}
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//nospace
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char pusto[256];
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int j = 0;
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for (int i = 0; line[i] != '\0'; i++) {
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if (!isspace(line[i])) {
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pusto[j++] = line[i];
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}
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}
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pusto[j] = '\0';
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// Parse
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double n1;
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double n2;
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double expect;
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char op;
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int parsed = sscanf(pusto, "%lf%c%lf=%lf", &n1, &op, &n2, &expect);
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if (parsed != 4) {
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printf("CHYBA\n");
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continue;
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}
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// is valid
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if (op != '+' && op != '-' && op != '*' && op != '/') {
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printf("CHYBA\n");
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continue;
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}
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// resultat ye
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double teraz;
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switch (op) {
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case '+':
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teraz = n1 + n2;
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break;
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case '-':
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teraz = n1 - n2;
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break;
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case '*':
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teraz = n1 * n2;
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break;
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case '/':
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if (n2 == 0.0) {
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printf("ZLE\n");
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continue;
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}
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teraz = n1 / n2;
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break;
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}
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// zaokrouhleni
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double rounded_teraz = round(teraz * 100.0) / 100.0;
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double rounded_expect = round(expect * 100.0) / 100.0;
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if (fabs(rounded_teraz - rounded_expect) < 1e-9) {
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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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}
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