/in/foo.cc: In member function 'void SeqList::FindiSecondMax(int, int*)':
/in/foo.cc:11:6: warning: unused variable 'i' [-Wunused-variable]
  int i,j,p,k=0,second,temp;
      ^
/in/foo.cc:11:16: warning: variable 'second' set but not used [-Wunused-but-set-variable]
  int i,j,p,k=0,second,temp;
                ^~~~~~
/in/foo.cc:36:10: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized]
   cout<<p;
          ^