diff --git a/cpp/2203/220329-CN.cpp b/cpp/2203/220329-CN.cpp
new file mode 100644
index 0000000..86faab6
--- /dev/null
+++ b/cpp/2203/220329-CN.cpp
@@ -0,0 +1,34 @@
+#include <string>
+#include <functional>
+#include <iostream>
+
+class Solution {
+public:
+	static int maxConsecutiveAnswers(const std::string& answerKey, int k) {
+		int n = answerKey.length();
+		std::function<int(char)> solve = [&](char ch) {
+			int L = 0, R = 0, cnt = 0;
+			// Interval: [L, R)
+			// Initial
+			for (; R < n && cnt < k; ++R)
+				if (answerKey[R] != ch)
+					++cnt;
+			int ret = R - L;
+			for (; R < n; ++R) {
+				if (answerKey[R] != ch) {
+					ret = std::max(ret, R - L);
+					while (answerKey[L] == ch)
+						++L;
+					++L;
+				}
+			}
+			return std::max(ret, R - L);
+		};
+		return std::max(solve('T'), solve('F'));
+	}
+};
+
+int main() {
+	std::cout << Solution::maxConsecutiveAnswers("TFFT", 1);
+	return 0;
+}
diff --git a/cpp/2203/CMakeLists.txt b/cpp/2203/CMakeLists.txt
index ba66ab5..71d7eb1 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 220329.cpp)
+ADD_EXECUTABLE(2203 220329-CN.cpp)