Initialization#

a1/program.c

@@ -8,8 +8,14 @@ int main() {
     double num1, num2, result, expected_result;
     char op;
 
-    // Read the input line
-    fgets(line, sizeof(line), stdin);
+    while (fgets(line, sizeof(line), stdin) != NULL) {
+        if (line[0] == '\n') {
+            // Stop when the user enters a blank line
+            break;
+        }
+
+        num1 = num2 = result = 0;
+        op = '\0';
 
         // Remove any spaces between symbols
         for (int i = 0; line[i] != '\0'; i++) {
@@ -27,13 +33,13 @@ int main() {
         // Check if the input is valid
         if (op != '+' && op != '-' && op != '*' && op != '/') {
             printf("CHYBA\n");
-        return 1;
+            continue;
         }
 
         // Check for division by zero
         if (op == '/' && num2 == 0) {
             printf("ZLE\n");
-        return 0;
+            continue;
         }
 
         // Perform the calculation
@@ -58,6 +64,7 @@ int main() {
         } else {
             printf("ZLE\n");
         }
+    }
 
     return 0;
 }