diff --git a/more/0100.cpp b/more/0100.cpp
index 656f5e2..042899f 100644
--- a/more/0100.cpp
+++ b/more/0100.cpp
@@ -8,9 +8,20 @@ struct TreeNode {
     explicit TreeNode(int x = 0, TreeNode* left = nullptr, TreeNode* right = nullptr) : val(x), left(left), right(right) {}
 };
 
+/**
+ * 100. Same Tree
+ * Given the roots of two binary trees p and q, write a function to check if they are the same or not.
+ * Two binary trees are considered the same if they are structurally identical, and the nodes have the same value.
+ */
+
 class Solution {
 public:
-	static bool isSameTree(TreeNode* p, TreeNode* q) {
+	static bool isSameTree(const TreeNode* const p, const TreeNode* const 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
+};
+
+int main() {
+	// No code for testing
+	return 0;
+}
\ No newline at end of file