83 lines
2.1 KiB
C
83 lines
2.1 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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int main() {
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char line[100];
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double num1, num2, result, expected_result;
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char op;
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while (fgets(line, sizeof(line), stdin) != NULL) {
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if (line[0] == '\n') {
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// Stop when the user enters a blank line
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break;
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}
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num1 = num2 = result = expected_result = 0;
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op = '\0';
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// Remove any spaces between symbols
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for (int i = 0; line[i] != '\0'; i++) {
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if (isspace(line[i])) {
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for (int j = i; line[j] != '\0'; j++) {
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line[j] = line[j + 1];
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}
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i--; // Move back one step to recheck the current character
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}
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}
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// Parse the line
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if (sscanf(line, "%lf%c%lf=%lf", &num1, &op, &num2, &expected_result) != 4) {
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printf("CHYBA\n");
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continue;
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}
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// Check if the input 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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// Check for division by zero
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if (op == '/' && num2 == 0) {
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printf("ZLE\n");
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continue;
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}
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// Perform the calculation
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switch (op) {
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case '+':
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result = num1 + num2;
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break;
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case '-':
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result = num1 - num2;
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break;
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case '*':
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result = num1 * num2;
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break;
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case '/':
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if (num2 == 0) {
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printf("CHYBA\n");
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continue;
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}
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result = num1 / num2;
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break;
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}
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// Round both result and expected_result to two decimal places
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result = round(result * 100.0) / 100.0;
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expected_result = round(expected_result * 100.0) / 100.0;
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// Check if the result is correct
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if (result == expected_result) {
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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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