Run id: 3364

Main.cc: In function 'int main()':
Main.cc:10:16: error: invalid use of member function (did you forget the '()' ?)
     if(a.size<=2){
                ^
Main.cc:14:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i <= a.size()-3; i++)
                                  ^
Main.cc:15:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j = i; j <= a.size(); j++)
                                    ^