1 files changed, 32 insertions, 1 deletions
diff --git a/src/02/01/main.c b/src/02/01/main.c
index a16f695..81bbf2f 100644
--- a/src/02/01/main.c
+++ b/src/02/01/main.c
@@ -1,9 +1,40 @@
 #include "binary_tree.h"
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+
+static Node *nodes[32];
+static int visited_count;
+
+static void visitor(Node *node) {
+  nodes[visited_count] = node;
+  visited_count++;
+}
 
 int main(int argc, char *argv[]) {
   printf("=== COMP-272 - Assignment 02 - Question 01 ===\n");
-  printf("Bye\n");
+
+  Node *a = initialize(100);
+  Node *b = initialize(200);
+  Node *c = initialize(300);
+  Node *d = initialize(400);
+  Node *e = initialize(500);
+
+  a->left = b;
+  a->right = c;
+  b->left = d;
+  b->right = e;
+  inspect(a, 0);
+
+  printf("\n=== Preorder traversal ===\n");
+  int visited_count = 0;
+  memset(nodes, 0, sizeof(nodes));
+
+  traverse(a, visitor, PREORDER);
+
+  for (int i = 0; i < visited_count; i++) {
+    printf("%d", nodes[i]->data);
+  }
+
   return 0;
 }