/in/lab7.cpp: In member function 'virtual Turn MyGame::turn()':
/in/lab7.cpp:217:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 0; i < bullet_D.size(); i++) {
                         ~~^~~~~~~~~~~~~~~~~
/in/lab7.cpp: In member function 'virtual std::__cxx11::string MyGame::draw() const':
/in/lab7.cpp:312:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 for (int i=0;i<bullet_D.size();i++) {
                              ~^~~~~~~~~~~~~~~~
/in/lab7.cpp: In member function 'virtual Map MyGame::getMap() const':
/in/lab7.cpp:347:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 for (int i=0;i<bullet_D.size();i++){
                              ~^~~~~~~~~~~~~~~~