Merge https://github.com/sidorovis/cpp_craft_1013
homework4: add initial project structure
3_4 solved
3_4 solved
homework4_4
homework4_5
homework4_5 small update
homework3: protect cout by mutex in binary read/write methods
homework4_4:replace raw pointer with smart pointer
3_5 solved
Added solutions for week 4
3_6 solved
Merge https://github.com/sidorovis/cpp_craft_1013
4_4 solved
unthreaded 4_5 solved
Merge pull request #135 from ailyasov/master

homework4 from ailyasov (with small bug)
4_5 solved
Merge https://github.com/sidorovis/cpp_craft_1013
Merge pull request #143 from Lapenkov/master

Added solutions for week 4 from Lapenkov
Merge pull request #144 from Aljaksandr/master

Tasks #3, #4 solution for Aljaksandr