AK Laboratory Work 4

*.ninja files were generated automatically.
*.cpp files were taken from here.
Instructions for CMake files can be found here.

Commands for assembly

1. Make:
   $ make -f Makefile
2. CMake:
   $ cmake ~/AK-LW4
3. Ninja:
   $ cd ~/AK-LW4 && mkdir build && cd build && cmake -GNinja .. && ninja