some programs!!!

CMakeLists.txt

@@ -7,6 +7,8 @@ set(CMAKE_C_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
+
 file(GLOB_RECURSE SOURCES "*.cpp" "*.c")
 
 foreach (source ${SOURCES})