/in/foo.cc: In function 'int main()':
/in/foo.cc:23:3: warning: 'E' may be used uninitialized in this function [-Wmaybe-uninitialized]
   23 |   if(ATK<E) cout<<"Tyr is not so great!"<<endl;
      |   ^~
/in/foo.cc:16:8: warning: 'atk' may be used uninitialized in this function [-Wmaybe-uninitialized]
   16 |    atk += m;
      |    ~~~~^~~~