/in/foo.cc: In function 'int main()':
/in/foo.cc:25:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < game.size(); i++){
                   ~~^~~~~~~~~~~~~
/in/foo.cc:30:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     else if ((i+2<game.size()) && game[i+2] != game[i+1] && !b1){
               ~~~^~~~~~~~~~~~
/in/foo.cc:36:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     else if ((i+2<game.size()) && game[i+2] == game[i+1] && !b3){
               ~~~^~~~~~~~~~~~
/in/foo.cc:50:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < game.size(); i++)
                  ~~^~~~~~~~~~~~~