diff --git a/cpp/2204/220403-CN.cpp b/cpp/2204/220403-CN.cpp
new file mode 100644
index 0000000..ff04f54
--- /dev/null
+++ b/cpp/2204/220403-CN.cpp
@@ -0,0 +1,24 @@
+#include <vector>
+#include <algorithm>
+#include <typeinfo>
+#include <iostream>
+
+class Solution {
+public:
+	static char nextGreatestLetter(const std::vector<char>& letters, char target) {
+		auto it = std::upper_bound(letters.begin(), letters.end(), target);
+		return it == letters.end() ? letters.front() : *it;
+	}
+};
+
+int main() {
+	const char* str = "123";
+	std::vector<char> test(str, str + 3);
+	auto func = [](const std::vector<char>& v) {
+		// MSVC 17:
+		// class std::_Vector_const_iterator<class std::_Vector_val<struct std::_Simple_types<char> > >
+		std::cout << typeid(v.begin()).name();
+	};
+	func(test);
+	return 0;
+}
diff --git a/cpp/2204/CMakeLists.txt b/cpp/2204/CMakeLists.txt
index 0e71a2f..452c84b 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 220403.cpp)
+ADD_EXECUTABLE(2204 220403-CN.cpp)