diff --git a/cpp/2203/220317.cpp b/cpp/2203/220317.cpp
new file mode 100644
index 0000000..0bc25eb
--- /dev/null
+++ b/cpp/2203/220317.cpp
@@ -0,0 +1,23 @@
+#include <iostream>
+#include <string>
+
+class Solution {
+public:
+	static int scoreOfParentheses(const std::string& s) {
+		int stack[30], top = -1, ret = 0;
+		for (char ch : s) {
+			if (ch == '(') {
+				stack[++top] = 0;
+			} else { // ch == ')'
+				*(top ? &stack[top - 1] : &ret) += (stack[top] ? stack[top] << 1 : 1);
+				--top;
+			}
+		}
+		return ret;
+	}
+};
+
+int main() {
+	std::cout << Solution::scoreOfParentheses("((())())");
+	return 0;
+}
diff --git a/cpp/2203/CMakeLists.txt b/cpp/2203/CMakeLists.txt
index 30eaf5e..44a1aae 100644
--- a/cpp/2203/CMakeLists.txt
+++ b/cpp/2203/CMakeLists.txt
@@ -3,4 +3,4 @@ PROJECT(2203)
 
 SET(CMAKE_CXX_STANDARD 23)
 
-ADD_EXECUTABLE(2203 220316-CN.cpp)
+ADD_EXECUTABLE(2203 220317.cpp)