diff --git a/2201/220113-CN.cpp b/2201/220113-CN.cpp
new file mode 100644
index 0000000..7bed728
--- /dev/null
+++ b/2201/220113-CN.cpp
@@ -0,0 +1,26 @@
+#include <vector>
+#include <iostream>
+
+class Solution {
+public:
+	static int dominantIndex(const std::vector<int>& nums) {
+		int a = 0, b = -1, n = nums.size();
+		if (n == 1)
+			return 0;
+		for (int i = 1; i < n; ++i) {
+			if (nums[i] > nums[a]) {
+				b = a;
+				a = i;
+			} else if (b < 0 || nums[i] > nums[b]) {
+				b = i;
+			}
+		}
+		if (b < 0 || (nums[a]) < (nums[b] << 1))
+			return -1;
+		return a;
+	}
+};
+
+int main() {
+	std::cout << Solution::dominantIndex({1, 0});
+}
\ No newline at end of file
diff --git a/2201/CMakeLists.txt b/2201/CMakeLists.txt
index 9311585..7e11243 100644
--- a/2201/CMakeLists.txt
+++ b/2201/CMakeLists.txt
@@ -3,4 +3,4 @@ PROJECT(2201)
 
 SET(CMAKE_CXX_STANDARD 23)
 
-ADD_EXECUTABLE(2201 220112.cpp)
\ No newline at end of file
+ADD_EXECUTABLE(2201 220113-CN.cpp)
\ No newline at end of file