From 16f799a0e089b1b0301b2ee6fc3b3d2c210d1d4b Mon Sep 17 00:00:00 2001
From: Mistivia <i@mistivia.com>
Date: Wed, 10 Sep 2025 11:46:15 +0800
Subject: fix

---
 0100/main.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/0100/main.c b/0100/main.c
index 22f36b0..a27b167 100644
--- a/0100/main.c
+++ b/0100/main.c
@@ -1,3 +1,12 @@
+#include <stdbool.h>
+#include <stdlib.h>
+
+struct TreeNode {
+    int val;
+    struct TreeNode *left;
+    struct TreeNode *right;
+};
+
 /**
  * Definition for a binary tree node.
  * struct TreeNode {
-- 
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