diff --git a/more/0344.cpp b/more/0344.cpp
new file mode 100644
index 0000000..43d15da
--- /dev/null
+++ b/more/0344.cpp
@@ -0,0 +1,24 @@
+#include <vector>
+
+class Solution {
+public:
+	static void reverseString(std::vector<char>& s) {
+		char tmp;
+		for (int i = 0, j = s.size() - 1; i < j; ++i, --j) {
+			tmp = s[i];
+			s[i] = s[j];
+			s[j] = tmp;
+		}
+	}
+};
+
+int main() {
+	const char str[] = "hello";
+	std::vector<char> args;
+	args.reserve(sizeof str);
+	for (auto i : str)
+		if (i)
+			args.push_back(i);
+	Solution::reverseString(args);
+	return 0;
+}
\ No newline at end of file
diff --git a/more/CMakeLists.txt b/more/CMakeLists.txt
index c2102a4..1241580 100644
--- a/more/CMakeLists.txt
+++ b/more/CMakeLists.txt
@@ -3,4 +3,4 @@ PROJECT(more)
 
 SET(CMAKE_CXX_STANDARD 23)
 
-ADD_EXECUTABLE(more 0100.cpp)
+ADD_EXECUTABLE(more 0344.cpp)