Create: homework_5.7.1.cpp, homework_5.7.2.cpp

Create: homework_5.6.2.cpp, homework_5.6.1.cpp

Create: homework_5.5.2.cpp, homework_5.5.1.cpp

Create: homework_5.4.2.cpp, homework_5.4.1.cpp

Create: homework_5.3.3.cpp

Create: homework_5.3.1.cpp, homework_5.3.2.cpp

Create: homework_5.2.1.cpp, homework_5.2.2.cpp