From f6246bb5ef981040ee9fe98b6eb9ca0d8f806c0e Mon Sep 17 00:00:00 2001
From: mr314ot <mr314ot@sigma.tuke.sk>
Date: Thu, 20 Nov 2025 19:33:34 +0100
Subject: [PATCH] du6 - 16

---
 du6/program.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/du6/program.c b/du6/program.c
index 7dbc15c..dd14d64 100644
--- a/du6/program.c
+++ b/du6/program.c
@@ -58,6 +58,17 @@ Tree* read_tree() {
         return NULL;
     }
 
+    // kontrola prebytocnych potomkov
+    long pos = ftell(stdin);
+
+    if (fgets(buffer, SIZE, stdin)) {
+    	// ak sa nacitalo ine nez prazdny riadok → chyba
+    	if (strcmp(buffer, "\n") != 0) {
+        	valid_db = 0;
+    	}
+    	fseek(stdin, pos, SEEK_SET);
+    }
+
     return node;
 }