/in/foo.cc: In function 'int main()':
/in/foo.cc:47:22: error: no match for 'operator=' (operand types are 'PolyListNode' and 'PolyListNode*')
  p=new PolyListNode[n];
                      ^
/in/foo.cc:4:8: note: candidate: PolyListNode& PolyListNode::operator=(const PolyListNode&)
 struct PolyListNode
        ^~~~~~~~~~~~
/in/foo.cc:4:8: note:   no known conversion for argument 1 from 'PolyListNode*' to 'const PolyListNode&'
/in/foo.cc:4:8: note: candidate: PolyListNode& PolyListNode::operator=(PolyListNode&&)
/in/foo.cc:4:8: note:   no known conversion for argument 1 from 'PolyListNode*' to 'PolyListNode&&'
/in/foo.cc:49:9: error: no match for 'operator[]' (operand types are 'PolyListNode' and 'int')
   cin>>p[i].coef>>p[i].index;
         ^
/in/foo.cc:49:20: error: no match for 'operator[]' (operand types are 'PolyListNode' and 'int')
   cin>>p[i].coef>>p[i].index;
                    ^
/in/foo.cc:50:14: error: no matching function for call to 'PolyList::PolyList(PolyListNode&)'
  PolyList P(p);
              ^
/in/foo.cc:19:1: note: candidate: PolyList::PolyList(PolyList&)
 PolyList::PolyList(PolyList &p)
 ^~~~~~~~
/in/foo.cc:19:1: note:   no known conversion for argument 1 from 'PolyListNode' to 'PolyList&'