diff --git a/a3/binary_search_tree.c b/a3/binary_search_tree.c
index acd2e21..3a28213 100644
--- a/a3/binary_search_tree.c
+++ b/a3/binary_search_tree.c
@@ -1,11 +1,5 @@
-#include <stdlib.h>
 #include "binary_search_tree.h"
-
-typedef struct node {
-    struct node *right;
-    struct node *left;
-    int data;
-} node_t;
+#include <stdlib.h>
 
 node_t* insert(node_t *node, int data) {
     if (node == NULL) {
@@ -22,6 +16,13 @@ node_t* insert(node_t *node, int data) {
     }
 }
 
+void inorder_traversal(node_t *node, int *sorted) {
+    if (node == NULL) return;
+    inorder_traversal(node->left, sorted);
+    sorted[sorted_index++] = node->data;
+    inorder_traversal(node->right, sorted);
+}
+
 node_t* build_tree(int *tree_data, size_t tree_data_len) {
     node_t *root = NULL;
     for (size_t i = 0; i < tree_data_len; i++) {
@@ -37,15 +38,6 @@ void free_tree(node_t *tree) {
     free(tree);
 }
 
-static int sorted_index = 0;
-
-void inorder_traversal(node_t *node, int *sorted) {
-    if (node == NULL) return;
-    inorder_traversal(node->left, sorted);
-    sorted[sorted_index++] = node->data;
-    inorder_traversal(node->right, sorted);
-}
-
 int *sorted_data(node_t *tree) {
     int *sorted = (int*)malloc(sizeof(int) * 1000); // Předpokládáme, že strom má maximálně 1000 prvků
     sorted_index = 0;