diff --git a/2202/220214.cpp b/2202/220214.cpp
new file mode 100644
index 0000000..ec6dcb2
--- /dev/null
+++ b/2202/220214.cpp
@@ -0,0 +1,77 @@
+#include <queue>
+#include <iostream>
+
+/**
+ * Definition for a binary tree node.
+ */
+struct TreeNode {
+    int val;
+    TreeNode* left;
+    TreeNode* right;
+    explicit TreeNode(int x, TreeNode* left = nullptr, TreeNode* right = nullptr) : val(x), left(left), right(right) {}
+};
+
+class Solution2 {
+private:
+	inline static const int N = 10005;
+public:
+	static int maxDepth(TreeNode* root) {
+		if (!root)
+			return 0;
+
+		auto** ptrQueue = new TreeNode*[N]{root};
+		auto* intQueue = new int[N]{1};
+		int front = 0, rear = 1;
+
+		int ret;
+		while (front < rear) {
+			ret = intQueue[front];
+
+			if (ptrQueue[front]->left) {
+				ptrQueue[rear] = ptrQueue[front]->left;
+				intQueue[rear] = 1 + ret;
+				++rear;
+			}
+			if (ptrQueue[front]->right) {
+				ptrQueue[rear] = ptrQueue[front]->right;
+				intQueue[rear] = 1 + ret;
+				++rear;
+			}
+			++front;
+		}
+
+		delete[] ptrQueue;
+		delete[] intQueue;
+		return ret;
+	}
+};
+
+class Solution {
+public:
+	static int maxDepth(const TreeNode* const root) {
+		if (!root)
+			return 0;
+
+		std::queue<std::pair<const TreeNode* const, int>> q;
+		q.push({root, 1});
+
+		int ret;
+		while (!q.empty()) {
+			const auto t = q.front();
+			q.pop();
+
+			ret = t.second;
+
+			if (t.first->left)
+				q.push({t.first->left, t.second + 1});
+			if (t.first->right)
+				q.push({t.first->right, t.second + 1});
+		}
+
+		return ret;
+	}
+};
+
+int main() {
+	return 0;
+}
diff --git a/2202/CMakeLists.txt b/2202/CMakeLists.txt
index faaa539..bd3759f 100644
--- a/2202/CMakeLists.txt
+++ b/2202/CMakeLists.txt
@@ -3,4 +3,4 @@ PROJECT(2202)
 
 SET(CMAKE_CXX_STANDARD 23)
 
-ADD_EXECUTABLE(2202 220214-CN.cpp)
+ADD_EXECUTABLE(2202 220214.cpp)