second commit

cv8/program.c

@@ -4,78 +4,91 @@
 #include <assert.h>
 #define SIZE 100
 
-typedef struct tree {
+struct node {
    // Otázka aleo odpoveď
-   char value[SIZE];
+   char data[SIZE];
    // Odpoveď áno
-   struct tree* left;
+   struct node* left;
    // Odpoveď nie
-   struct tree* right;
-} tree;
+   struct node* right;
+};
 
-void print_tree(struct tree* node){
-    if( node == NULL){
-        printf("empty");
-        return;
+struct node* getNewNode(char data[SIZE]){
+	struct node* newNode = (struct node*)calloc(1, sizeof(struct node));
+	memcpy(newNode->data, data, SIZE);
+	newNode->left = NULL;
+	newNode->right = NULL;
+	return newNode;
+}
+
+
+struct node* insert(struct node* root, char data[SIZE]){
+    if(root == NULL){
+        root = getNewNode(data);
+        return root;
     }
-    printf("hodnota: %s\n",node->value);
-    printf("left ");
-    printf("%s\n",node->left->value);
-    printf("right ");
-    printf("%s\n",node->right->value);
 
+    if(root->left == NULL){
+        root->left = insert(root->left,data);
+    }else{
+        root->right = insert(root->right,data);
+    }
+    return root;
 }
 
-struct tree* read_tree(tree* node){
-    char buffer[SIZE];
-    memset(buffer,0, SIZE);
-    char* r = fgets(buffer, SIZE, stdin);
-    if( r == NULL ){
-		return node;
-	} 
-    memcpy(node->value, buffer, SIZE);
-	r = fgets(buffer, SIZE, stdin);
-	if( r == NULL ){
-		node->left = NULL;
-		return node;
-	}
-	node->left = calloc(1, sizeof(struct tree));
-    memcpy(node->left->value, buffer, SIZE);
-	r = fgets(buffer, SIZE, stdin);
-	if( r == NULL ){
-		node->right = NULL;
-		return node;
-	}		
-	node->right = calloc(1, sizeof(struct tree));
-    memcpy(node->right->value, buffer, SIZE);
-	read_tree(node);
-	print_tree(node);
-	free(node);
-	return node;	
-}
-
-void guess(tree* node){
-	
-
-
-}
-/*void remove_tree(struct tree* node){
+void remove_tree(struct node* node){
 	if ( node != NULL ){
+		remove_tree(node->left);
+		remove_tree(node->right);
+		free(node);
 		
-		if( node->left != NULL){
-			remove_tree(node->left);
-			free(node);
-		}
-		if( node->right != NULL){
-			remove_tree(node->right);
-			free(node);
-		}
 	}
-}*/
+}
+
+void printt_tree(struct node* tree,int offset){
+    for (int i = 0; i < offset; i++){
+        printf(" ");
+    }
+    printf("%s",tree->data);
+    if (tree->left){
+        printt_tree(tree->left,offset+3);
+        printt_tree(tree->right,offset+3);
+    }
+}
 
 int main(){
-    tree* node = calloc(1, sizeof(struct tree));
-    read_tree(node);
-	//remove_tree(node);
+    struct node* tree = NULL;
+    char buff[SIZE];
+    char* r;
+    int counter=0;
+    int lists=0;
+    while(1){
+        r = fgets(buff, SIZE, stdin);    
+        if(r == NULL){
+            break;
+        }
+        if(strncmp(buff, "*", 1)) lists++;
+        tree = insert(tree, buff);
+        counter++;
+    }
+    puts("Expert z bufetu to vie.");
+    printf("Pozna %d druhov ovocia a zeleniny.\n", lists);
+    puts("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.");
+    for(int i=0; i< counter; i++){
+        printf("%s", tree->data);
+        r = fgets(buff, SIZE, stdin);
+        if(strncmp(buff, "a", 1) && tree->right != NULL){
+            tree = tree->right;
+            continue;
+        }else if(strncmp(buff, "n", 1) && tree->left != NULL){
+            tree = tree->left;
+            continue;
+        }else {
+            puts("Koniec");
+            break;
+        }
+    }
+	//printt_tree(tree, 1);
+	remove_tree(tree);
 return 0;
 }