diff --git a/a1/program.c b/a1/program.c
index b0dd4f1..2448485 100644
--- a/a1/program.c
+++ b/a1/program.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
+#include <string.h>
 
 #define MAX_LINE_LENGTH 100
 
@@ -8,14 +9,23 @@ int main() {
   char uloha[MAX_LINE_LENGTH];
 
   while (fgets(uloha, MAX_LINE_LENGTH, stdin) != NULL) {
-    if (uloha[0] == '\n') {
+    int i;
+    int isEmpty = 1;
+    for (i = 0; uloha[i] != '\0'; i++) {
+      if (uloha[i] != ' ' && uloha[i] != '\t' && uloha[i] != '\n' && uloha[i] != '\r') {
+        isEmpty = 0;
+        break;
+      }
+    }
+    if (isEmpty) {
       continue;
     }
 
-    int cislo1, cislo2, vysledok_zadany;
+    int cislo1, cislo2;
+    double vysledok_zadany;
     char operacia;
 
-    if (sscanf(uloha, "%d %c %d = %d", &cislo1, &operacia, &cislo2, &vysledok_zadany) != 4) {
+    if (sscanf(uloha, "%d %c %d = %lf", &cislo1, &operacia, &cislo2, &vysledok_zadany) != 4) {
       printf("CHYBA\n");
       continue;
     }
@@ -44,7 +54,7 @@ int main() {
         continue;
     }
 
-    if (fabs(vysledok_skutocny - round(vysledok_skutocny * 100) / 100.0) < 1e-6 && vysledok_zadany == round(vysledok_skutocny * 100) / 100.0) {
+    if (fabs(vysledok_skutocny - vysledok_zadany) < 1e-6) {
       printf("OK\n");
     } else {
       printf("ZLE\n");