diff --git a/du3/program.c b/du3/program.c
index 7501235..54dad7b 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -32,8 +32,8 @@ float IsArithCorrect(float num1, float num2, char op, float result)
         break;
     }
 
-    float calcResult = roundf(calcResult* 100.0f) / 100.0f;
-    float result = roundf(result * 100.0f) / 100.0f;
+    calcResult = roundf(calcResult* 100.0f) / 100.0f;
+    result = roundf(result * 100.0f) / 100.0f;
 
     if (calcResult == result)
     {
@@ -126,7 +126,7 @@ int main()
             {
                 printf("CHYBA\n");
             }
-            else if (IsArithCorrect(num1, num2, &op1, resultNum) == 0)
+            else if (IsArithCorrect(num1, num2, op1, resultNum) == 0)
             {
                 printf("ZLE\n");
             }