diff --git a/cpp/2204/220410-CN.cpp b/cpp/2204/220410-CN.cpp
new file mode 100644
index 0000000..e5716a6
--- /dev/null
+++ b/cpp/2204/220410-CN.cpp
@@ -0,0 +1,23 @@
+#include <unordered_set>
+#include <string>
+#include <vector>
+
+class Solution {
+private:
+	inline static const std::string MORSE[] = {".-","-...","-.-.","-..",".","..-.","--.","....","..",".---","-.-",".-..","--","-.","---",".--.","--.-",".-.","...","-","..-","...-",".--","-..-","-.--","--.."};
+public:
+	static int uniqueMorseRepresentations(const std::vector<std::string>& words) {
+		std::unordered_set<std::string> s;
+		for (const auto& str : words) {
+			std::string t;
+			for (char ch : str)
+				t += MORSE[ch - 'a'];
+			s.insert(t);
+		}
+		return s.size();
+	}
+};
+
+int main() {
+	return 0;
+}
diff --git a/cpp/2204/CMakeLists.txt b/cpp/2204/CMakeLists.txt
index 4d08d91..9de3d26 100644
--- a/cpp/2204/CMakeLists.txt
+++ b/cpp/2204/CMakeLists.txt
@@ -3,4 +3,4 @@ PROJECT(2204)
 
 SET(CMAKE_CXX_STANDARD 23)
 
-ADD_EXECUTABLE(2204 220409.cpp)
+ADD_EXECUTABLE(2204 220410-CN.cpp)