/in/foo.cc: In member function 'int SeqList::FindiSecondMax(int*, int)':
/in/foo.cc:32:9: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return x;
         ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:64:31: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<s.FindiSecondMax(b, n2);
                               ^
/in/foo.cc:63:34: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<< s.FindiSecondMax(a, n1)<<"  ";
                                  ^~~~