From 73092b0602784c950e2009778bbe5a1c7db7d8e9 Mon Sep 17 00:00:00 2001
From: Rudolf Zambory <rudolf.zambory@student.tuke.sk>
Date: Fri, 14 Mar 2025 09:53:54 +0100
Subject: [PATCH] gfs

---
 du3/program.c | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 du3/program.c

diff --git a/du3/program.c b/du3/program.c
new file mode 100644
index 0000000..bc5133b
--- /dev/null
+++ b/du3/program.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <math.h>
+
+int main() {
+    char riadok[1000];
+    double cislo1, cislo2, vysledok, ocakavany;
+    char ligma;
+    
+    while (fgets(riadok, 1000, stdin) && riadok[0] != '\n') {
+        if (sscanf(riadok, "%lf %c %lf = %lf", &cislo1, &ligma, &cislo2, &ocakavany) != 4) {
+            printf("CHYBA\n");
+            continue;
+        }
+        
+        if (ligma != '+' && ligma != '-' && ligma != '*' && ligma != '/') {
+            printf("CHYBA\n");
+            continue;
+        }
+        
+        if (ligma == '/' && cislo2 == 0) {
+            printf("CHYBA\n");
+            continue;
+        }
+        
+        switch (ligma) {
+            case '+': vysledok = cislo1 + cislo2; break;
+            case '-': vysledok = cislo1 - cislo2; break;
+            case '*': vysledok = cislo1 * cislo2; break;
+            case '/': vysledok = cislo1 / cislo2; break;
+        }
+        
+        vysledok = round(vysledok * 100) / 100;
+        ocakavany = round(ocakavany * 100) / 100;
+        
+        printf(fabs(vysledok - ocakavany) < 0.001 ? "OK\n" : "ZLE\n");
+    }
+    return 0;
+}