add raw files

CMakeLists.txt

@@ -0,0 +1,37 @@
+cmake_minimum_required(VERSION 3.14)
+project(hello_world)
+
+add_executable(
+    main
+    ./main.cpp
+)
+
+target_include_directories(
+    main
+    PUBLIC ./include
+)
+
+add_library(
+    eigen
+    ./eigen.cpp
+)
+
+target_include_directories(
+    eigen
+    PRIVATE ./include/Eigen
+)
+
+target_link_libraries(
+    main
+    PUBLIC eigen
+)
+
+add_executable(
+    calender
+    ./calender.cpp
+)
+
+add_executable(
+    hello-world
+    ./hello.cpp
+)