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#include <iostream>
#include <string>
#include <list>
#include <iterator>
#include <typeinfo> 
#include <vector>
 
using namespace std;
 
 
 
class Edition {
 
	protected :
 
	string NameEd;
	string adress;
 
	public :
	Edition () {
		cout << "Введите название печатного издания "<<endl;
		cin>>NameEd;
		cout<<"Введите адрес печатного издания "<<endl;
		cin>>adress;
		}
	Edition (string a,string b){
		NameEd=a;
		adress=b;
		}
	string getNameEd () {return NameEd;}
	string getadress () {return adress;}
	virtual void print();
 
	};
 
 
 
	class Book : public Edition {
	protected :
	string name;
	int year;
	string author;
	int pages;
 
	public:
	string getname () { return name; }
	int getyear() {return year;}
	string getauthor() {return author;}
	int getpages() {return pages;}
	virtual void print();
	Book ();
	};
 
class StudentBook : public Book{
 
	protected :
	string subject;
	int grade;
 
	public :
	string getsubject() {return subject;}
	int getgrade() {return grade;}
	virtual void print();
	StudentBook () {
		cout << "Введите название "<< endl;
		cin >> name;
		cout << "Введите предмет "<<endl;
		cin>>subject;
		cout << "Введите автора "<<endl;
		cin>>author;
		cout << "Введите класс "<<endl;
		cin>>grade;
		cout<<"Введите год издания"<<endl;
		cin>>year;
		cout<<"Введите количество страниц"<<endl;
		cin>>pages;
 
		}
	};
 
class Journal : public Book{
 
	protected:
	//string name;
	int issue;
 
	public :
	//string getname() {return name;}
	int getissue() {return issue;}
	void print();
	Journal () {
		cout << "Введите название "<< endl;
		cin >> name;
		cout << "Введите автора "<<endl;
		cin>>author;
		cout << "Введите номер выпуска "<<endl;
		cin>>issue;
		cout<<"Введите год издания"<<endl;
		cin>>year;
		cout<<"Введите количество страниц"<<endl;
		cin>>pages;
 
		}
	}; 
 
	void add (list <Edition> c) {
		int p;
		cout << "1 - добавить печатное издание "<<endl;
		cout << "2 - добавить книгу "<<endl;
		cout << "3 - добавить учебник"<<endl;
		cout << "4 - добавить журнал"<<endl;
		cin >> p;
		if (p ==1 ) { Edition t; c.push_back(t);}
		else if (p==2) {Book  t; c.push_back(t);}
		else if (p==3) {StudentBook t; c.push_back(t);}
		else if (p==4) {Journal t; c.push_back(t);}
 
		}
	Book::Book () : Edition() {
 
		cout << "Введите название "<< endl;
		cin >> name;
		cout << "Введите автора "<<endl;
		cin>>author;
		cout<<"Введите год издания"<<endl;
		cin>>year;
		cout<<"Введите количество страниц"<<endl;
		cin>>pages;
 
		}
void Edition::print() {
	cout << this->NameEd << ' ' << this->adress<<endl;
	}
 
void Book::print() {
	this->Edition::print();
	cout <<this->name<<' '<<this->author<<' '<< this->pages<<endl;
	}
void StudentBook :: print () {
	this-> Book :: print();
	cout<<this->subject<<' '<<this->grade<<endl;
	}
void Journal :: print () {
	this-> Book :: print();
	cout <<this->issue<<endl;
	}
 
int main () {
	int n;
	list <Edition> c;
	cout << "1 - добавить в список печатное издание " << endl;
	cout << "2 - добавить книгу" << endl;
	cout << "3 - добавить учебник" << endl;
	cout << "4 - добавить журнал" << endl;
	cout << "5 - вывести учебниуки по данному предмету " << endl;
	cout << "6 - вывести весь список " << endl;
	cout << "7 - завершить работу программы "<< endl;
	cin >>n;
	while (n!=7) {
	if (n == 1) {
	Edition t; c.push_back(t);
	cin >> n;
	}
	if (n == 2) {
	Book t; c.push_back(t);
	t.print();
	cin>>n;
	}
	if (n == 3) {
	StudentBook t; c.push_back(t);
	cin >> n;
	}
	if (n == 4) {
	Journal t; c.push_back(t);
	cin >> n;
	}
}
 
 
	list <Edition * >::iterator it;
			int y = 0;
			//int a= c.size();
			for (it=c.begin(); it != c.end(); it++) {
				cout << y << " элемент списка \n";
				y++;
				//Edition *it = c.begin();
				//if (typeid(c[i]) ==typeid(Book)) {
			Edition *t = *it;
				t->print();
			//}
}
}
 
 

prog.cpp: In function ‘int main()’:
prog.cpp:183:20: error: no match for ‘operator=’ (operand types are ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ and ‘std::__cxx11::list<Edition>::iterator {aka std::_List_iterator<Edition>}’)
    for (it=c.begin(); it != c.end(); it++) {
                    ^
In file included from /usr/include/c++/6/list:63:0,
                 from prog.cpp:3:
/usr/include/c++/6/bits/stl_list.h:128:12: note: candidate: constexpr std::_List_iterator<Edition*>& std::_List_iterator<Edition*>::operator=(const std::_List_iterator<Edition*>&)
     struct _List_iterator
            ^~~~~~~~~~~~~~
/usr/include/c++/6/bits/stl_list.h:128:12: note:   no known conversion for argument 1 from ‘std::__cxx11::list<Edition>::iterator {aka std::_List_iterator<Edition>}’ to ‘const std::_List_iterator<Edition*>&’
/usr/include/c++/6/bits/stl_list.h:128:12: note: candidate: constexpr std::_List_iterator<Edition*>& std::_List_iterator<Edition*>::operator=(std::_List_iterator<Edition*>&&)
/usr/include/c++/6/bits/stl_list.h:128:12: note:   no known conversion for argument 1 from ‘std::__cxx11::list<Edition>::iterator {aka std::_List_iterator<Edition>}’ to ‘std::_List_iterator<Edition*>&&’
prog.cpp:183:26: error: no match for ‘operator!=’ (operand types are ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ and ‘std::__cxx11::list<Edition>::iterator {aka std::_List_iterator<Edition>}’)
    for (it=c.begin(); it != c.end(); it++) {
                       ~~~^~~~~~~~~~
In file included from /usr/include/c++/6/list:63:0,
                 from prog.cpp:3:
/usr/include/c++/6/bits/stl_list.h:194:7: note: candidate: bool std::_List_iterator< <template-parameter-1-1> >::operator!=(const _Self&) const [with _Tp = Edition*; std::_List_iterator< <template-parameter-1-1> >::_Self = std::_List_iterator<Edition*>]
       operator!=(const _Self& __x) const _GLIBCXX_NOEXCEPT
       ^~~~~~~~
/usr/include/c++/6/bits/stl_list.h:194:7: note:   no known conversion for argument 1 from ‘std::__cxx11::list<Edition>::iterator {aka std::_List_iterator<Edition>}’ to ‘const _Self& {aka const std::_List_iterator<Edition*>&}’
In file included from /usr/include/c++/6/iosfwd:40:0,
                 from /usr/include/c++/6/ios:38,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/postypes.h:221:5: note: candidate: template<class _StateT> bool std::operator!=(const std::fpos<_StateT>&, const std::fpos<_StateT>&)
     operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
     ^~~~~~~~
/usr/include/c++/6/bits/postypes.h:221:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::fpos<_StateT>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/bits/stl_algobase.h:64:0,
                 from /usr/include/c++/6/bits/char_traits.h:39,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/stl_pair.h:444:5: note: candidate: template<class _T1, class _T2> constexpr bool std::operator!=(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)
     operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
     ^~~~~~~~
/usr/include/c++/6/bits/stl_pair.h:444:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::pair<_T1, _T2>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/6/bits/char_traits.h:39,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/stl_iterator.h:304:5: note: candidate: template<class _Iterator> bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
     operator!=(const reverse_iterator<_Iterator>& __x,
     ^~~~~~~~
/usr/include/c++/6/bits/stl_iterator.h:304:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/6/bits/char_traits.h:39,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/stl_iterator.h:361:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)
     operator!=(const reverse_iterator<_IteratorL>& __x,
     ^~~~~~~~
/usr/include/c++/6/bits/stl_iterator.h:361:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/6/bits/char_traits.h:39,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/stl_iterator.h:1125:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator!=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)
     operator!=(const move_iterator<_IteratorL>& __x,
     ^~~~~~~~
/usr/include/c++/6/bits/stl_iterator.h:1125:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::move_iterator<_IteratorL>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/6/bits/char_traits.h:39,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/stl_iterator.h:1131:5: note: candidate: template<class _Iterator> bool std::operator!=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)
     operator!=(const move_iterator<_Iterator>& __x,
     ^~~~~~~~
/usr/include/c++/6/bits/stl_iterator.h:1131:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::move_iterator<_IteratorL>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/string:41:0,
                 from /usr/include/c++/6/bits/locale_classes.h:40,
                 from /usr/include/c++/6/bits/ios_base.h:41,
                 from /usr/include/c++/6/ios:42,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/allocator.h:158:5: note: candidate: template<class _T1, class _T2> bool std::operator!=(const std::allocator<_CharT>&, const std::allocator<_T2>&)
     operator!=(const allocator<_T1>&, const allocator<_T2>&)
     ^~~~~~~~
/usr/include/c++/6/bits/allocator.h:158:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::allocator<_CharT>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/string:41:0,
                 from /usr/include/c++/6/bits/locale_classes.h:40,
                 from /usr/include/c++/6/bits/ios_base.h:41,
                 from /usr/include/c++/6/ios:42,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/allocator.h:164:5: note: candidate: template<class _Tp> bool std::operator!=(const std::allocator<_CharT>&, const std::allocator<_CharT>&)
     operator!=(const allocator<_Tp>&, const allocator<_Tp>&)
     ^~~~~~~~
/usr/include/c++/6/bits/allocator.h:164:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::allocator<_CharT>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/string:52:0,
                 from /usr/include/c++/6/bits/locale_classes.h:40,
                 from /usr/include/c++/6/bits/ios_base.h:41,
                 from /usr/include/c++/6/ios:42,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/basic_string.h:5112:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator!=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^~~~~~~~
/usr/include/c++/6/bits/basic_string.h:5112:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/string:52:0,
                 from /usr/include/c++/6/bits/locale_classes.h:40,
                 from /usr/include/c++/6/bits/ios_base.h:41,
                 from /usr/include/c++/6/ios:42,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/basic_string.h:5125:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator!=(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator!=(const _CharT* __lhs,
     ^~~~~~~~
/usr/include/c++/6/bits/basic_string.h:5125:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   mismatched types ‘const _CharT*’ and ‘std::_List_iterator<Edition*>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/string:52:0,
                 from /usr/include/c++/6/bits/locale_classes.h:40,
                 from /usr/include/c++/6/bits/ios_base.h:41,
                 from /usr/include/c++/6/ios:42,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/basic_string.h:5137:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator!=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
     operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^~~~~~~~
/usr/include/c++/6/bits/basic_string.h:5137:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/bits/ios_base.h:46:0,
                 from /usr/include/c++/6/ios:42,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/system_error:311:3: note: candidate: bool std::operator!=(const std::error_code&, const std::error_code&)
   operator!=(const error_code& __lhs, const error_code& __rhs) noexcept
   ^~~~~~~~
/usr/include/c++/6/system_error:311:3: note:   no known conversion for argument 1 from ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ to ‘const std::error_code&’
/usr/include/c++/6/system_error:315:3: note: candidate: bool std::operator!=(const std::error_code&, const std::error_condition&)
   operator!=(const error_code& __lhs, const error_condition& __rhs) noexcept
   ^~~~~~~~
/usr/include/c++/6/system_error:315:3: note:   no known conversion for argument 1 from ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ to ‘const std::error_code&’
/usr/include/c++/6/system_error:319:3: note: candidate: bool std::operator!=(const std::error_condition&, const std::error_code&)
   operator!=(const error_condition& __lhs, const error_code& __rhs) noexcept
   ^~~~~~~~
/usr/include/c++/6/system_error:319:3: note:   no known conversion for argument 1 from ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ to ‘const std::error_condition&’
/usr/include/c++/6/system_error:323:3: note: candidate: bool std::operator!=(const std::error_condition&, const std::error_condition&)
   operator!=(const error_condition& __lhs,
   ^~~~~~~~
/usr/include/c++/6/system_error:323:3: note:   no known conversion for argument 1 from ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ to ‘const std::error_condition&’
In file included from /usr/include/c++/6/bits/locale_facets.h:48:0,
                 from /usr/include/c++/6/bits/basic_ios.h:37,
                 from /usr/include/c++/6/ios:44,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/streambuf_iterator.h:210:5: note: candidate: template<class _CharT, class _Traits> bool std::operator!=(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)
     operator!=(const istreambuf_iterator<_CharT, _Traits>& __a,
     ^~~~~~~~
/usr/include/c++/6/bits/streambuf_iterator.h:210:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::istreambuf_iterator<_CharT, _Traits>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/list:63:0,
                 from prog.cpp:3:
/usr/include/c++/6/bits/stl_list.h:293:5: note: candidate: template<class _Val> bool std::operator!=(const std::_List_iterator<_Tp>&, const std::_List_const_iterator<_Tp>&)
     operator!=(const _List_iterator<_Val>& __x,
     ^~~~~~~~
/usr/include/c++/6/bits/stl_list.h:293:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition>::iterator {aka std::_List_iterator<Edition>}’ is not derived from ‘const std::_List_const_iterator<_Tp>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/list:63:0,
                 from prog.cpp:3:
/usr/include/c++/6/bits/stl_list.h:1894:5: note: candidate: template<class _Tp, class _Alloc> bool std::operator!=(const std::__cxx11::list<_Tp, _Alloc>&, const std::__cxx11::list<_Tp, _Alloc>&)
     operator!=(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y)
     ^~~~~~~~
/usr/include/c++/6/bits/stl_list.h:1894:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::__cxx11::list<_Tp, _Alloc>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/iterator:66:0,
                 from prog.cpp:4:
/usr/include/c++/6/bits/stream_iterator.h:137:5: note: candidate: template<class _Tp, class _CharT, class _Traits, class _Dist> bool std::operator!=(const std::istream_iterator<_Tp, _CharT, _Traits, _Dist>&, const std::istream_iterator<_Tp, _CharT, _Traits, _Dist>&)
     operator!=(const istream_iterator<_Tp, _CharT, _Traits, _Dist>& __x,
     ^~~~~~~~
/usr/include/c++/6/bits/stream_iterator.h:137:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::istream_iterator<_Tp, _CharT, _Traits, _Dist>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^
In file included from /usr/include/c++/6/vector:64:0,
                 from prog.cpp:6:
/usr/include/c++/6/bits/stl_vector.h:1533:5: note: candidate: template<class _Tp, class _Alloc> bool std::operator!=(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)
     operator!=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
     ^~~~~~~~
/usr/include/c++/6/bits/stl_vector.h:1533:5: note:   template argument deduction/substitution failed:
prog.cpp:183:35: note:   ‘std::__cxx11::list<Edition*>::iterator {aka std::_List_iterator<Edition*>}’ is not derived from ‘const std::vector<_Tp, _Alloc>’
    for (it=c.begin(); it != c.end(); it++) {
                                   ^

Standard output is empty