diff --git a/src/bst.h b/src/bst.h
index 40b66c6..3cdc45c 100644
--- a/src/bst.h
+++ b/src/bst.h
@@ -7,4 +7,14 @@ bstNode* newNode(int);
 Tree* newTree();
 void bstInsert(Tree*, int);
 bool bstContains(Tree*, int);
-void bstFree(Tree*);
\ No newline at end of file
+void bstFree(Tree*);
+
+void bstInorder(Tree*);
+void bstPreorder(Tree*);
+void bstPostorder(Tree*);
+
+int bstHeight(Tree*);
+int bstSize(Tree*);
+// bstMin и bstMax возвращают 0 на пустом дереве
+int bstMin(Tree*);
+int bstMax(Tree*);
\ No newline at end of file