From f5355bd4dd706e9a79cf190676cc76999d0401f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Vl=C4=8Dek?= <tomas.vlcek@student.tuke.sk>
Date: Thu, 19 Mar 2026 01:54:59 +0000
Subject: [PATCH] Aktualizovat du3/program.c

---
 du3/program.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/du3/program.c b/du3/program.c
index 3a65bc4..d07ebe8 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -12,6 +12,8 @@
 float IsArithCorrect(float num1, float num2, char op, float result)
 {
     float calcResult = 0;
+    
+    if (num1 == '/' && num2 == 0) { return -1;}
 
     switch (op)
     {