diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index 8e70199..04c9982 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -3,8 +3,18 @@ PROJECT(leetcode-cpp)
 
 SET(CMAKE_CXX_STANDARD 23)
 
-# -Ofast -march=native -mtune=native -finline-functions -ffast-math -fomit-frame-pointer
-SET(CMAKE_CXX_FLAGS "-Wall")
+IF(MSVC)
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
+ELSE()
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -g3")
+ENDIF()
+
+IF(UNIX)
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fno-omit-frame-pointer")
+ENDIF()
+
+# Optimisation
+# SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Ofast -march=native -mtune=native -finline-functions -ffast-math -fomit-frame-pointer")
 
 ADD_EXECUTABLE(leetcode-cpp main.cpp)