From 36a36be66ec1ae78a4d61478420440d5018e3351 Mon Sep 17 00:00:00 2001
From: Denis Landa <denis.landa@student.tuke.sk>
Date: Thu, 20 Nov 2025 20:56:33 +0100
Subject: [PATCH] 1

---
 du6/program.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 du6/program.c

diff --git a/du6/program.c b/du6/program.c
new file mode 100644
index 0000000..a315956
--- /dev/null
+++ b/du6/program.c
@@ -0,0 +1,70 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define SIZE 256
+
+struct tree{
+    char text[SIZE];
+    struct tree* yes;
+    struct tree* no;
+};
+
+struct tree* read_tree(){
+    char buffer[SIZE];
+    if(!fgets(buffer,SIZE,stdin)) return NULL;
+    if(buffer[0]=='\n') return NULL;
+    struct tree* t=malloc(sizeof(struct tree));
+    strcpy(t->text,buffer);
+    t->yes=NULL;
+    t->no=NULL;
+    if(buffer[0]=='*') return t;
+    t->yes=read_tree();
+    t->no=read_tree();
+    return t;
+}
+
+void destroy_tree(struct tree* t){
+    if(!t) return;
+    destroy_tree(t->yes);
+    destroy_tree(t->no);
+    free(t);
+}
+
+int count_items(struct tree* t){
+    if(!t) return 0;
+    if(t->text[0]=='*') return 1;
+    return count_items(t->yes)+count_items(t->no);
+}
+
+void run_chatbot(struct tree* t){
+    printf("%s",t->text);
+    if(t->text[0]=='*'){
+        printf("Koniec\n");
+        return;
+    }
+    printf("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.\n");
+    char c;
+    if(scanf(" %c",&c)!=1){
+        printf("Chyba vstupu.\n");
+        return;
+    }
+    if(c=='a') run_chatbot(t->yes);
+    else if(c=='n') run_chatbot(t->no);
+    else printf("Nespravny vstup. Odpovedajte len 'a' alebo 'n'.\n");
+}
+
+int main(){
+    struct tree* root=read_tree();
+    if(!root){
+        printf("Chyba: nepodarilo sa nacitat bazu pravidiel.\n");
+        return 0;
+    }
+    int items=count_items(root);
+    printf("Expert z bufetu to vie.\n");
+    printf("Pozna %d druhov ovocia a zeleniny.\n",items);
+    run_chatbot(root);
+    destroy_tree(root);
+    return 0;
+}
+