85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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int main() {
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char priklad[300];
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int count = 0;
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// Read input line by line
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while (fgets(priklad, sizeof(priklad), stdin) != NULL) {
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count++;
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// Parse expression and evaluate it
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char *start = priklad;
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char *end = NULL;
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int valid = 1;
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float num1 = strtof(start, &end);
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if (end == start) {
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printf("KONIEC\n");
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continue;
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}
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start = end;
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// Find the operation symbol
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char op = *start;
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if (op != '+' && op != '-' && op != '*' && op != '/') {
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valid = 0;
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}
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start++;
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// Parse second number
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float num2 = strtof(start, &end);
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if (end == start) {
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valid = 0;
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}
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start = end;
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// Check for extra characters
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while (*start != '\0') {
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if (*start != '\n' && (*start < '0' || *start > '9') && *start != '.' && *start != ' ') {
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valid = 0;
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printf("CHYBA\n");
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start++;
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break;
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}
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}
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float result=0;
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if (valid) {
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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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result = num1 / num2;
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break;
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}
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}
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// Round result and compare to expected value
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float expected;
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if (sscanf(start, "%f", &expected) != 1) {
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continue;
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}
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expected = round(expected * 100) / 100;
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if (fabs(result - expected) < 0.001) {
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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 EXIT_SUCCESS;
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}
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