add_executable(2020_02 02.cpp) target_link_libraries(2020_02 aocpp) add_executable(2020_03 03.cpp) target_link_libraries(2020_03 aocpp) add_executable(2020_16 16.cpp) target_link_libraries(2020_16 aocpp dlx) add_executable(2020_21 21.cpp) target_link_libraries(2020_21 aocpp dlx)