create course_project_life_corrected_2.cpp

create course_project_life_corrected.cpp

create course_project_life.cpp

create home_work_12_4.cpp

create home_work_12_3.cpp

create home_work_12_2.cpp

create home_work_12_1.cpp

create home_work_11_2.cpp

create home_work_11_1.cpp

update home_work_10_2.cpp

create home_work_10_3.cpp

create home_work_10_2.cpp

create home_work_10_1.cpp

update home_work_9_2.cpp

update home_work_9_2.cpp

create home_work_9_3.cpp