add node struct to c binary tree

data-structures/trees/binary-tree/c/binary-tree.h

@@ -0,0 +1,25 @@
+#ifndef BINARY_TREE_H
+#define BINARY_TREE_H
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#endif
+
+typedef struct Node {
+    int data;
+    struct Node* left;
+    struct Node* right;
+} Node;
+
+Node* create_node(int data);
+
+void free_node(Node* node);
+
+void print_node(Node* node);
+
+Node* get_left(Node* node);
+Node* get_right(Node* node);
+
+void set_left(Node* parent, Node* child);
+void set_right(Node* parent, Node* child);