avl_tree impl

1 files changed, 10 insertions, 1 deletions

diff --git a/Computer_Science/data_structures/chapter_4/print_ascii_tree.h b/Computer_Science/data_structures/chapter_4/print_ascii_tree.h
index 12eed6a..1ddfa3b 100644
--- a/Computer_Science/data_structures/chapter_4/print_ascii_tree.h
+++ b/Computer_Science/data_structures/chapter_4/print_ascii_tree.h
@@ -1,12 +1,21 @@
+/*
+** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+** !!!Code originally from /http://www.openasthra.com/c-tidbits/printing-binary-trees-in-ascii/
+** !!! Just saved it, cause the website is down.
+** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+** I use it here for learning.
+*/
 #ifndef _PRINT_ASCII_TREE_H
 #define _PRINT_ASCII_TREE_H
 
 struct asciinode_struct;
 typedef struct asciinode_struct asciinode;
-typedef SearchTree Tree;
 
 #define MAX_HEIGHT 1000
+
+#ifndef INFINITY
 #define INFINITY (1 << 20)
+#endif
 
 int MIN (int X, int Y);
 int MAX (int X, int Y);