diff --git a/more/0100.cpp b/more/0100.cpp
new file mode 100644
index 0000000..656f5e2
--- /dev/null
+++ b/more/0100.cpp
@@ -0,0 +1,16 @@
+/**
+ * Definition for a binary tree node.
+ */
+struct TreeNode {
+    int val;
+    TreeNode* left;
+    TreeNode* right;
+    explicit TreeNode(int x = 0, TreeNode* left = nullptr, TreeNode* right = nullptr) : val(x), left(left), right(right) {}
+};
+
+class Solution {
+public:
+	static bool isSameTree(TreeNode* p, TreeNode* q) {
+		return (p == q) || (p && q && p->val == q->val && isSameTree(p->left, q->left) && isSameTree(p->right, q->right));
+	}
+};
\ No newline at end of file
diff --git a/more/CMakeLists.txt b/more/CMakeLists.txt
index aa5b425..c2102a4 100644
--- a/more/CMakeLists.txt
+++ b/more/CMakeLists.txt
@@ -3,4 +3,4 @@ PROJECT(more)
 
 SET(CMAKE_CXX_STANDARD 23)
 
-ADD_EXECUTABLE(more 0015.cpp)
+ADD_EXECUTABLE(more 0100.cpp)