add: 220219-CN [C++]

2202/220219-CN.cpp

@@ -0,0 +1,29 @@
+#include <vector>
+#include <cstdio>
+
+class Solution {
+public:
+	static std::vector<int> pancakeSort(std::vector<int>& arr) {
+		std::vector<int> ret;
+		int n = arr.size();
+		ret.reserve(n << 1);
+		for (int i = n; i; --i) {
+			auto intervalLast = std::next(arr.begin(), i);
+			auto maxElement = std::max_element(arr.begin(), intervalLast);
+			ret.push_back(1 + std::distance(arr.begin(), maxElement));
+			ret.push_back(i);
+			std::reverse(arr.begin(), std::next(maxElement));
+			std::reverse(arr.begin(), intervalLast);
+		}
+		return ret;
+	}
+};
+
+int main() {
+	std::vector<int> args = {1,2,3};
+	auto ret = Solution::pancakeSort(args);
+	for (int i : ret) {
+		std::printf("%d ", i);
+	}
+	return 0;
+}

2202/CMakeLists.txt

@@ -3,4 +3,4 @@ PROJECT(2202)
 
 SET(CMAKE_CXX_STANDARD 23)
 
-ADD_EXECUTABLE(2202 220218.cpp)
+ADD_EXECUTABLE(2202 220219-CN.cpp)