/in/foo.cc: In member function 'void PolyListNode::output()':
/in/foo.cc:73:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   for(int i=0;i<n;i++)
   ^~~
/in/foo.cc:75:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
     cout<<endl;
     ^~~~
/in/foo.cc: In member function 'PolyListNode PolyListNode::operator*(PolyListNode)':
/in/foo.cc:101:7: warning: unused variable 'i' [-Wunused-variable]
   int i=0,j=0;
       ^
/in/foo.cc:101:11: warning: unused variable 'j' [-Wunused-variable]
   int i=0,j=0;
           ^