From 6e022baacab1d074921327507565b1201aa93ff1 Mon Sep 17 00:00:00 2001
From: Marat Izmailov <marat.izmailov@student.tuke.sk>
Date: Wed, 13 Nov 2024 21:17:06 +0000
Subject: [PATCH] Update cv7/program.c

---
 cv7/program.c | 37 +++++++++++++++----------------------
 1 file changed, 15 insertions(+), 22 deletions(-)

diff --git a/cv7/program.c b/cv7/program.c
index c922904..5d62b4c 100644
--- a/cv7/program.c
+++ b/cv7/program.c
@@ -27,7 +27,7 @@ void free_tree(Node *root) {
 
 int count_answers(Node *root) {
     if (!root) return 0;
-    if (root->yes == NULL && root->no == NULL) return 1; // It's an answer
+    if (root->yes == NULL && root->no == NULL) return 1;
     return count_answers(root->yes) + count_answers(root->no);
 }
 
@@ -38,11 +38,11 @@ Node* parse_rules() {
     int stack_top = -1;
 
     while (fgets(line, sizeof(line), stdin)) {
-        // Trim newline and spaces
+        // Trim newline
         line[strcspn(line, "\n")] = 0;
-        if (strlen(line) == 0) break; // End of rules
+        if (strlen(line) == 0) break;
 
-        if (line[0] == '*') { // This is an answer
+        if (line[0] == '*') {
             Node *answer = create_node(line + 1);
             if (stack_top >= 0) {
                 if (stack[stack_top]->yes == NULL)
@@ -50,7 +50,7 @@ Node* parse_rules() {
                 else
                     stack[stack_top]->no = answer;
             }
-        } else { // This is a question
+        } else {
             Node *question = create_node(line);
             if (stack_top >= 0) {
                 if (stack[stack_top]->yes == NULL)
@@ -76,27 +76,19 @@ void ask_question(Node *node) {
         return;
     }
 
-    // Print the current question
-    printf("%s?\n", node->content);
-    if (node->yes) {
-        printf("* %s\n", node->yes->content);
+    printf("%s\n", node->content);
+    if (node->yes && node->yes->content[0] != '*') {
+        printf("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.\n");
     }
-    if (node->no) {
-        printf("* %s\n", node->no->content);
-    }
-
-    // Prompt for input
-    printf("\n");
-    printf("n\n");
 
     char response;
     while (1) {
         response = getchar();
         getchar(); // To capture newline
-        if (response == 'n') {
+        if (response == 'a' && node->yes) {
             ask_question(node->yes);
             break;
-        } else if (response == 'n') {
+        } else if (response == 'n' && node->no) {
             ask_question(node->no);
             break;
         } else {
@@ -107,7 +99,6 @@ void ask_question(Node *node) {
 }
 
 int main() {
-    // General system information only once
     printf("Expert z bufetu to vie.\n");
 
     Node *root = parse_rules();
@@ -119,9 +110,11 @@ int main() {
     int answer_count = count_answers(root);
     printf("Pozna %d druhov ovocia a zeleniny.\n", answer_count);
 
-    // Ask the first question
-    printf("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.\n");
-    ask_question(root);
+    if (root) {
+        printf("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.\n");
+        ask_question(root);
+    }
+    
     free_tree(root);
 
     return 0;