Language: C++

#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <string>
#include <vector>
#include <utility>
#include <algorithm>
#include <cmath>
#include <queue>
#include <set>
#include <iterator>

int main() {
  long long A, B;
  std::set<long long> aset, bset, res;
  scanf("%lld %lld", &A, &B);
  int amin = (int)std::sqrt(A), bmin = std::sqrt(B);
  for (int i = 1; i <= amin; ++i) {
    if (A%i == 0) {
      aset.insert(i);
      aset.insert(A/i);
    }
  }
  for (int i = 1; i <= bmin; ++i) {
    if (B%i == 0) {
      bset.insert(i);
      bset.insert(B/i);
    }
  }
  std::set_intersection(aset.begin(), aset.end(),
                        bset.begin(), bset.end(),
                        std::inserter(res, res.end()));
  std::vector<long long> d(res.begin(), res.end());
  for (int i = 1; i < d.size(); ++i) {
    for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      if ((*j) % (*(d.begin()+i)) == 0) {
        d.erase(j);
        --j;
      }
    }
  }
  std::cout << d.size() << std::endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:35:54: error: conversion from '__normal_iterator<long long int*,vector<long long int>>' to non-scalar type '__normal_iterator<int*,vector<int>>' requested
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                         ~~~~~~~~~~~~~^~
a.cc:35:60: error: no match for 'operator!=' (operand types are 'std::vector<int>::iterator' and 'std::vector<long long int>::iterator')
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                          ~ ^~ ~~~~~~~
      |                                                          |         |
      |                                                          |         __normal_iterator<long long int*,vector<long long int>>
      |                                                          __normal_iterator<int*,vector<int>>
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/c++allocator.h:33,
                 from /usr/include/c++/14/bits/allocator.h:46,
                 from /usr/include/c++/14/string:43,
                 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:3:
/usr/include/c++/14/bits/new_allocator.h:222:9: note: candidate: 'template<class _Up> bool std::operator!=(const __new_allocator<int>&, const __new_allocator<_Tp>&)'
  222 |         operator!=(const __new_allocator&, const __new_allocator<_Up>&)
      |         ^~~~~~~~
/usr/include/c++/14/bits/new_allocator.h:222:9: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   'std::vector<long long int>::iterator' is not derived from 'const std::__new_allocator<_Tp>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
/usr/include/c++/14/bits/new_allocator.h:222:9: note: candidate: 'template<class _Up> bool std::operator!=(const __new_allocator<long long int>&, const __new_allocator<_Tp>&)'
  222 |         operator!=(const __new_allocator&, const __new_allocator<_Up>&)
      |         ^~~~~~~~
/usr/include/c++/14/bits/new_allocator.h:222:9: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   'std::vector<long long int>::iterator' is not derived from 'const std::__new_allocator<_Tp>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
In file included from /usr/include/c++/14/iosfwd:42,
                 from /usr/include/c++/14/ios:40:
/usr/include/c++/14/bits/postypes.h:197:5: note: candidate: 'template<class _StateT> bool std::operator!=(const fpos<_StateT>&, const fpos<_StateT>&)'
  197 |     operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/postypes.h:197:5: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   'std::vector<int>::iterator' is not derived from 'const std::fpos<_StateT>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
/usr/include/c++/14/bits/allocator.h:243:5: note: candidate: 'template<class _T1, class _T2> bool std::operator!=(const allocator<_CharT>&, const allocator<_T2>&)'
  243 |     operator!=(const allocator<_T1>&, const allocator<_T2>&)
      |     ^~~~~~~~
/usr/include/c++/14/bits/allocator.h:243:5: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   'std::vector<int>::iterator' is not derived from 'const std::allocator<_CharT>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
In file included from /usr/include/c++/14/string:48:
/usr/include/c++/14/bits/stl_iterator.h:455:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator!=(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)'
  455 |     operator!=(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:455:5: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   'std::vector<int>::iterator' is not derived from 'const std::reverse_iterator<_Iterator>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
/usr/include/c++/14/bits/stl_iterator.h:500:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator!=(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  500 |     operator!=(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:500:5: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   'std::vector<int>::iterator' is not derived from 'const std::reverse_iterator<_Iterator>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
/usr/include/c++/14/bits/stl_iterator.h:1686:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator!=(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1686 |     operator!=(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1686:5: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   'std::vector<int>::iterator' is not derived from 'const std::move_iterator<_IteratorL>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
/usr/include/c++/14/bits/stl_iterator.h:1753:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator!=(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)'
 1753 |     operator!=(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1753:5: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   'std::vector<int>::iterator' is not derived from 'const std::move_iterator<_IteratorL>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
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:1052:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator!=(const pair<_T1, _T2>&, const pair<_T1, _T2>&)'
 1052 |     operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:1052:5: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   'std::vector<int>::iterator' is not derived from 'const std::pair<_T1, _T2>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
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:651:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator!=(basic_string_view<_CharT, _Traits>, basic_string_view<_CharT, _Traits>)'
  651 |     operator!=(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:651:5: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   '__gnu_cxx::__normal_iterator<int*, std::vector<int> >' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
/usr/include/c++/14/string_view:658:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator!=(basic_string_view<_CharT, _Traits>, __type_identity_t<basic_string_view<_CharT, _Traits> >)'
  658 |     operator!=(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:658:5: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   '__gnu_cxx::__normal_iterator<int*, std::vector<int> >' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
/usr/include/c++/14/string_view:666:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator!=(__type_identity_t<basic_string_view<_CharT, _Traits> >, basic_string_view<_CharT, _Traits>)'
  666 |     operator!=(__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:666:5: note:   template argument deduction/substitution failed:
a.cc:35:69: note:   '__gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   35 |     for (std::vector<int>::iterator j = d.begin() + i+1; j != d.end(); ++j) {
      |                                                                     ^
/usr/include/c++/14/bits/basic_string.h:3833:5: 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>&)'
 3833 |     operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3833:5: note:   template argu