Language: C++

#include<iostream>
#include<vector>
using namespace std;
int nm=1000000010;
int main() {
	int n;
	cin >> n;
	vector<int>num[nm];
	int ans = 0;
	for (int i = 0;i < n;i++) {
		int x;
		cin >> x;
		if (x > n)ans++;//次のfor文をn回で済ませられるようにn以上のxは除く
		else num[x - 1]++;//xの個数を数えていく 
	}
	for (int i = 0;i < n;i++) {
		if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
		if (num[i] < i + 1)ans += num[i];//n<xの場合
	}
	cout << ans << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:14:32: error: no 'operator++(int)' declared for postfix '++' [-fpermissive]
   14 |                 else num[x - 1]++;//xの個数を数えていく
      |                      ~~~~~~~~~~^~
a.cc:17:28: error: no match for 'operator>' (operand types are 'std::vector<int>' and 'int')
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                     ~~~~~~ ^ ~~~~~
      |                          |     |
      |                          |     int
      |                          std::vector<int>
In file included from /usr/include/c++/14/string:48,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_iterator.h:462:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator>(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)'
  462 |     operator>(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:462:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   'std::vector<int>' is not derived from 'const std::reverse_iterator<_Iterator>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
/usr/include/c++/14/bits/stl_iterator.h:507:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator>(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  507 |     operator>(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:507:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   'std::vector<int>' is not derived from 'const std::reverse_iterator<_Iterator>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
/usr/include/c++/14/bits/stl_iterator.h:1714:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator>(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1714 |     operator>(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1714:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   'std::vector<int>' is not derived from 'const std::move_iterator<_IteratorL>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
/usr/include/c++/14/bits/stl_iterator.h:1774:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator>(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)'
 1774 |     operator>(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1774:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   'std::vector<int>' is not derived from 'const std::move_iterator<_IteratorL>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 from /usr/include/c++/14/string:51:
/usr/include/c++/14/bits/stl_pair.h:1058:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator>(const pair<_T1, _T2>&, const pair<_T1, _T2>&)'
 1058 |     operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:1058:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   'std::vector<int>' is not derived from 'const std::pair<_T1, _T2>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
In file included from /usr/include/c++/14/bits/basic_string.h:47,
                 from /usr/include/c++/14/string:54:
/usr/include/c++/14/string_view:695:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator>(basic_string_view<_CharT, _Traits>, basic_string_view<_CharT, _Traits>)'
  695 |     operator> (basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:695:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   'std::vector<int>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
/usr/include/c++/14/string_view:702:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator>(basic_string_view<_CharT, _Traits>, __type_identity_t<basic_string_view<_CharT, _Traits> >)'
  702 |     operator> (basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:702:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   'std::vector<int>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
/usr/include/c++/14/string_view:710:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator>(__type_identity_t<basic_string_view<_CharT, _Traits> >, basic_string_view<_CharT, _Traits>)'
  710 |     operator> (__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:710:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
/usr/include/c++/14/bits/basic_string.h:3915:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const __cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 3915 |     operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3915:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   'std::vector<int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
/usr/include/c++/14/bits/basic_string.h:3929:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)'
 3929 |     operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3929:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   'std::vector<int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
/usr/include/c++/14/bits/basic_string.h:3942:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const _CharT*, const __cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 3942 |     operator>(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3942:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   mismatched types 'const _CharT*' and 'std::vector<int>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
In file included from /usr/include/c++/14/bits/memory_resource.h:47,
                 from /usr/include/c++/14/string:68:
/usr/include/c++/14/tuple:2619:5: note: candidate: 'template<class ... _TElements, class ... _UElements> constexpr bool std::operator>(const tuple<_UTypes ...>&, const tuple<_Elements ...>&)'
 2619 |     operator>(const tuple<_TElements...>& __t,
      |     ^~~~~~~~
/usr/include/c++/14/tuple:2619:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   'std::vector<int>' is not derived from 'const std::tuple<_UTypes ...>'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
In file included from /usr/include/c++/14/vector:66,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_vector.h:2102:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator>(const vector<_Tp, _Alloc>&, const vector<_Tp, _Alloc>&)'
 2102 |     operator>(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_vector.h:2102:5: note:   template argument deduction/substitution failed:
a.cc:17:34: note:   mismatched types 'const std::vector<_Tp, _Alloc>' and 'int'
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                  ^
a.cc:17:50: error: no match for 'operator-' (operand types are 'std::vector<int>' and 'int')
   17 |                 if (num[i] > i + 1)ans += num[i] - i - 1;//n<=xの場合
      |                                           ~~~~~~ ^ ~
      |                                                |   |
      |                                                |   int
      |                                                std::vector<int>
/usr/include/c++/14/bits/stl_iterator.h:618:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__y.base() - __x.base())) std::operator-(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  618 |     operator-(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:618:5: note:   template argument deduction/substitution