| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1260124 | sarsenbai_008 | Infinite Race (EGOI24_infiniterace2) | C++17 | Compilation error | 0 ms | 0 KiB |
#include <bits/stdc++.h>
using namespace std;
signed main()
{
int k,n;
cin>>k>>n;
vector <int> a(n+1);
for(int i=1;i<=n;i++){
cin>>a[i];
}
map <int,int> mp;
int cnt=0,d=0;
for(int i=1;i<=n;i++){
if(a[i]<0) mp[a[i]]++;
else mp[a[i]]--;
}
int sum=0;
for(int i=1;i<k-1;i++){
sum+=abs(mp[a[i]]-mp[a[i+1]]);
}
cout<n-1;
}
Compilation message (stderr)
Main.cpp: In function 'int main()':
Main.cpp:21:9: error: no match for 'operator<' (operand types are 'std::ostream' {aka 'std::basic_ostream<char>'} and 'int')
21 | cout<n-1;
| ~~~~^~~~
| | |
| | int
| std::ostream {aka std::basic_ostream<char>}
Main.cpp:21:9: note: candidate: 'operator<(int, int)' (built-in)
21 | cout<n-1;
| ~~~~^~~~
Main.cpp:21:9: note: no known conversion for argument 1 from 'std::ostream' {aka 'std::basic_ostream<char>'} to 'int'
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from Main.cpp:1:
/usr/include/c++/11/bits/regex.h:1099:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)'
1099 | operator<(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1099:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from Main.cpp:1:
/usr/include/c++/11/bits/regex.h:1180:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const std::__cxx11::sub_match<_BiIter>&)'
1180 | operator<(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1180:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from Main.cpp:1:
/usr/include/c++/11/bits/regex.h:1273:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
1273 | operator<(const sub_match<_Bi_iter>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1273:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from Main.cpp:1:
/usr/include/c++/11/bits/regex.h:1347:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)'
1347 | operator<(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1347:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from Main.cpp:1:
/usr/include/c++/11/bits/regex.h:1441:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
1441 | operator<(const sub_match<_Bi_iter>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1441:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from Main.cpp:1:
/usr/include/c++/11/bits/regex.h:1516:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)'
1516 | operator<(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1516:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from Main.cpp:1:
/usr/include/c++/11/bits/regex.h:1616:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
1616 | operator<(const sub_match<_Bi_iter>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1616:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_pair.h:489:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator<(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)'
489 | operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_pair.h:489:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::pair<_T1, _T2>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:426:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
426 | operator<(const reverse_iterator<_Iterator>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:426:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:465:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
465 | operator<(const reverse_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:465:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:1609:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
1609 | operator<(const move_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:1609:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:1667:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)'
1667 | operator<(const move_iterator<_Iterator>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:1667:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/basic_string.h:48,
from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from Main.cpp:1:
/usr/include/c++/11/string_view:589:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)'
589 | operator< (basic_string_view<_CharT, _Traits> __x,
| ^~~~~~~~
/usr/include/c++/11/string_view:589:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::basic_ostream<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/basic_string.h:48,
from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from Main.cpp:1:
/usr/include/c++/11/string_view:595:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(std::basic_string_view<_CharT, _Traits>, std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >)'
595 | operator< (basic_string_view<_CharT, _Traits> __x,
| ^~~~~~~~
/usr/include/c++/11/string_view:595:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::basic_ostream<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/basic_string.h:48,
from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from Main.cpp:1:
/usr/include/c++/11/string_view:602:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >, std::basic_string_view<_CharT, _Traits>)'
602 | operator< (__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
| ^~~~~~~~
/usr/include/c++/11/string_view:602:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from Main.cpp:1:
/usr/include/c++/11/bits/basic_string.h:6340:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
6340 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/basic_string.h:6340:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from Main.cpp:1:
/usr/include/c++/11/bits/basic_string.h:6353:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)'
6353 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/basic_string.h:6353:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from Main.cpp:1:
/usr/include/c++/11/bits/basic_string.h:6365:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
6365 | operator<(const _CharT* __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/basic_string.h:6365:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const _CharT*' and 'std::basic_ostream<char>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/tuple:39,
from /usr/include/c++/11/functional:54,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from Main.cpp:1:
/usr/include/c++/11/array:311:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> bool std::operator<(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&)'
311 | operator<(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b)
| ^~~~~~~~
/usr/include/c++/11/array:311:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::array<_Tp, _Nm>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/functional:54,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from Main.cpp:1:
/usr/include/c++/11/tuple:1566:5: note: candidate: 'template<class ... _TElements, class ... _UElements> constexpr bool std::operator<(const std::tuple<_Tps ...>&, const std::tuple<_UTypes ...>&)'
1566 | operator<(const tuple<_TElements...>& __t,
| ^~~~~~~~
/usr/include/c++/11/tuple:1566:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::tuple<_Tps ...>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/vector:67,
from /usr/include/c++/11/functional:62,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_vector.h:1930:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator<(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)'
1930 | operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_vector.h:1930:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::vector<_Tp, _Alloc>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/deque:67,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:68,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_deque.h:2285:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator<(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)'
2285 | operator<(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_deque.h:2285:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::deque<_Tp, _Alloc>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/locale_conv.h:41,
from /usr/include/c++/11/locale:43,
from /usr/include/c++/11/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72,
from Main.cpp:1:
/usr/include/c++/11/bits/unique_ptr.h:795:5: note: candidate: 'template<class _Tp, class _Dp, class _Up, class _Ep> bool std::operator<(const std::unique_ptr<_Tp, _Dp>&, const std::unique_ptr<_Up, _Ep>&)'
795 | operator<(const unique_ptr<_Tp, _Dp>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:795:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::unique_ptr<_Tp, _Dp>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/locale_conv.h:41,
from /usr/include/c++/11/locale:43,
from /usr/include/c++/11/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72,
from Main.cpp:1:
/usr/include/c++/11/bits/unique_ptr.h:807:5: note: candidate: 'template<class _Tp, class _Dp> bool std::operator<(const std::unique_ptr<_Tp, _Dp>&, std::nullptr_t)'
807 | operator<(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:807:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::unique_ptr<_Tp, _Dp>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/locale_conv.h:41,
from /usr/include/c++/11/locale:43,
from /usr/include/c++/11/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72,
from Main.cpp:1:
/usr/include/c++/11/bits/unique_ptr.h:816:5: note: candidate: 'template<class _Tp, class _Dp> bool std::operator<(std::nullptr_t, const std::unique_ptr<_Tp, _Dp>&)'
816 | operator<(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:816:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const std::unique_ptr<_Tp, _Dp>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/list:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:79,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_list.h:2085:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator<(const std::__cxx11::list<_Tp, _Alloc>&, const std::__cxx11::list<_Tp, _Alloc>&)'
2085 | operator<(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_list.h:2085:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::__cxx11::list<_Tp, _Alloc>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/map:61,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:81,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_map.h:1501:5: note: candidate: 'template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator<(const std::map<_Key, _Tp, _Compare, _Allocator>&, const std::map<_Key, _Tp, _Compare, _Allocator>&)'
1501 | operator<(const map<_Key, _Tp, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_map.h:1501:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::map<_Key, _Tp, _Compare, _Allocator>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/map:62,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:81,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_multimap.h:1166:5: note: candidate: 'template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator<(const std::multimap<_Key, _Tp, _Compare, _Allocator>&, const std::multimap<_Key, _Tp, _Compare, _Allocator>&)'
1166 | operator<(const multimap<_Key, _Tp, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_multimap.h:1166:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::multimap<_Key, _Tp, _Compare, _Allocator>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/shared_ptr.h:53,
from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from Main.cpp:1:
/usr/include/c++/11/bits/shared_ptr_base.h:1457:5: note: candidate: 'template<class _Tp, class _Up, __gnu_cxx::_Lock_policy _Lp> bool std::operator<(const std::__shared_ptr<_Tp1, _Lp>&, const std::__shared_ptr<_Tp2, _Lp>&)'
1457 | operator<(const __shared_ptr<_Tp, _Lp>& __a,
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr_base.h:1457:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::__shared_ptr<_Tp1, _Lp>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/shared_ptr.h:53,
from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from Main.cpp:1:
/usr/include/c++/11/bits/shared_ptr_base.h:1468:5: note: candidate: 'template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator<(const std::__shared_ptr<_Tp, _Lp>&, std::nullptr_t)'
1468 | operator<(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr_base.h:1468:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::__shared_ptr<_Tp, _Lp>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/shared_ptr.h:53,
from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from Main.cpp:1:
/usr/include/c++/11/bits/shared_ptr_base.h:1476:5: note: candidate: 'template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator<(std::nullptr_t, const std::__shared_ptr<_Tp, _Lp>&)'
1476 | operator<(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr_base.h:1476:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const std::__shared_ptr<_Tp, _Lp>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from Main.cpp:1:
/usr/include/c++/11/bits/shared_ptr.h:488:5: note: candidate: 'template<class _Tp, class _Up> bool std::operator<(const std::shared_ptr<_Tp>&, const std::shared_ptr<_Tp>&)'
488 | operator<(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr.h:488:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::shared_ptr<_Tp>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from Main.cpp:1:
/usr/include/c++/11/bits/shared_ptr.h:499:5: note: candidate: 'template<class _Tp> bool std::operator<(const std::shared_ptr<_Tp>&, std::nullptr_t)'
499 | operator<(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr.h:499:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::shared_ptr<_Tp>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from Main.cpp:1:
/usr/include/c++/11/bits/shared_ptr.h:508:5: note: candidate: 'template<class _Tp> bool std::operator<(std::nullptr_t, const std::shared_ptr<_Tp>&)'
508 | operator<(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr.h:508:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const std::shared_ptr<_Tp>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/queue:64,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:86,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_queue.h:362:5: note: candidate: 'template<class _Tp, class _Seq> bool std::operator<(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)'
362 | operator<(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_queue.h:362:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::queue<_Tp, _Seq>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/set:61,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:87,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_set.h:1023:5: note: candidate: 'template<class _Key, class _Compare, class _Alloc> bool std::operator<(const std::set<_Key, _Compare, _Allocator>&, const std::set<_Key, _Compare, _Allocator>&)'
1023 | operator<(const set<_Key, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_set.h:1023:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::set<_Key, _Compare, _Allocator>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/set:62,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:87,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_multiset.h:1009:5: note: candidate: 'template<class _Key, class _Compare, class _Alloc> bool std::operator<(const std::multiset<_Key, _Compare, _Allocator>&, const std::multiset<_Key, _Compare, _Allocator>&)'
1009 | operator<(const multiset<_Key, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_multiset.h:1009:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::multiset<_Key, _Compare, _Allocator>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/stack:61,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:89,
from Main.cpp:1:
/usr/include/c++/11/bits/stl_stack.h:337:5: note: candidate: 'template<class _Tp, class _Seq> bool std::operator<(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)'
337 | operator<(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_stack.h:337:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::stack<_Tp, _Seq>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from Main.cpp:1:
/usr/include/c++/11/bits/valarray_after.h:419:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__less, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)'
419 | _DEFINE_EXPR_BINARY_OPERATOR(<, struct std::__less)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:419:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from Main.cpp:1:
/usr/include/c++/11/bits/valarray_after.h:419:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__less, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
419 | _DEFINE_EXPR_BINARY_OPERATOR(<, struct std::__less)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:419:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from Main.cpp:1:
/usr/include/c++/11/bits/valarray_after.h:419:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__less, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)'
419 | _DEFINE_EXPR_BINARY_OPERATOR(<, struct std::__less)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:419:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from Main.cpp:1:
/usr/include/c++/11/bits/valarray_after.h:419:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__less, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)'
419 | _DEFINE_EXPR_BINARY_OPERATOR(<, struct std::__less)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:419:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from Main.cpp:1:
/usr/include/c++/11/bits/valarray_after.h:419:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__less, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)'
419 | _DEFINE_EXPR_BINARY_OPERATOR(<, struct std::__less)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:419:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from Main.cpp:1:
/usr/include/c++/11/valarray:1200:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__less, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__less, _Tp>::result_type> std::operator<(const std::valarray<_Tp>&, const std::valarray<_Tp>&)'
1200 | _DEFINE_BINARY_OPERATOR(<, __less)
| ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/valarray:1200:1: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::valarray<_Tp>'
21 | cout<n-1;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from Main.cpp:1:
/usr/include/c++/11/valarray:1200:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__less, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__less, _Tp>::result_type> std::operator<(const std::valarray<_Tp>&, const typename std::valarray<_Tp>::value_type&)'
1200 | _DEFINE_BINARY_OPERATOR(<, __less)
| ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/valarray:1200:1: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::valarray<_Tp>'
21 | cout<n-1;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from Main.cpp:1:
/usr/include/c++/11/valarray:1200:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__less, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__less, _Tp>::result_type> std::operator<(const typename std::valarray<_Tp>::value_type&, const std::valarray<_Tp>&)'
1200 | _DEFINE_BINARY_OPERATOR(<, __less)
| ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/valarray:1200:1: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const std::valarray<_Tp>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/forward_list:38,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:104,
from Main.cpp:1:
/usr/include/c++/11/bits/forward_list.h:1468:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator<(const std::forward_list<_Tp, _Alloc>&, const std::forward_list<_Tp, _Alloc>&)'
1468 | operator<(const forward_list<_Tp, _Alloc>& __lx,
| ^~~~~~~~
/usr/include/c++/11/bits/forward_list.h:1468:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::forward_list<_Tp, _Alloc>'
21 | cout<n-1;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130,
from Main.cpp:1:
/usr/include/c++/11/optional:1063:5: note: candidate: 'template<class _Tp, class _Up> constexpr std::__optional_lt_t<_Tp, _Up> std::operator<(const std::optional<_Tp>&, const std::optional<_Up>&)'
1063 | operator<(const optional<_Tp>& __lhs, const optional<_Up>& __rhs)
| ^~~~~~~~
/usr/include/c++/11/optional:1063:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::optional<_Tp>'
21 | cout<n-1;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130,
from Main.cpp:1:
/usr/include/c++/11/optional:1131:5: note: candidate: 'template<class _Tp> constexpr bool std::operator<(const std::optional<_Tp>&, std::nullopt_t)'
1131 | operator<(const optional<_Tp>& /* __lhs */, nullopt_t) noexcept
| ^~~~~~~~
/usr/include/c++/11/optional:1131:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::optional<_Tp>'
21 | cout<n-1;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130,
from Main.cpp:1:
/usr/include/c++/11/optional:1136:5: note: candidate: 'template<class _Tp> constexpr bool std::operator<(std::nullopt_t, const std::optional<_Tp>&)'
1136 | operator<(nullopt_t, const optional<_Tp>& __rhs) noexcept
| ^~~~~~~~
/usr/include/c++/11/optional:1136:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const std::optional<_Tp>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130,
from Main.cpp:1:
/usr/include/c++/11/optional:1197:5: note: candidate: 'template<class _Tp, class _Up> constexpr std::__optional_lt_t<_Tp, _Up> std::operator<(const std::optional<_Tp>&, const _Up&)'
1197 | operator<(const optional<_Tp>& __lhs, const _Up& __rhs)
| ^~~~~~~~
/usr/include/c++/11/optional:1197:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::optional<_Tp>'
21 | cout<n-1;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130,
from Main.cpp:1:
/usr/include/c++/11/optional:1203:5: note: candidate: 'template<class _Tp, class _Up> constexpr std::__optional_lt_t<_Up, _Tp> std::operator<(const _Up&, const std::optional<_Tp>&)'
1203 | operator<(const _Up& __lhs, const optional<_Tp>& __rhs)
| ^~~~~~~~
/usr/include/c++/11/optional:1203:5: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: mismatched types 'const std::optional<_Tp>' and 'int'
21 | cout<n-1;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:133,
from Main.cpp:1:
/usr/include/c++/11/variant:1230:3: note: candidate: 'template<class ... _Types> constexpr bool std::operator<(const std::variant<_Types ...>&, const std::variant<_Types ...>&)'
1230 | _VARIANT_RELATION_FUNCTION_TEMPLATE(<, less)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/variant:1230:3: note: template argument deduction/substitution failed:
Main.cpp:21:12: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::variant<_Types ...>'
21 | cout<n-1;
| ^
In file included from /usr/include/c++/11/bits/ios_base.h:46,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from Main.cpp:1:
/usr/include/c++/11/system_error:269:3: note: candidate: 'bool std::operator<(const std::error_code&, const std::error_code&)'
269 | operator<(const error_code& __lhs, const error_code& __rhs) noexcept
| ^~~~~~~~
/usr/include/c++/11/system_error:269:31: note: no known conversion for argument 1 from 'std::ostream' {aka 'std::basic_ostream<char>'} to 'const std::error_code&'
269 | operator<(const error_code& __lhs, const error_code& __rhs) noexcept
| ~~~~~~~~~~~~~~~~~~^~~~~
/usr/include/c++/11/system_error:398:3: note: candidate: 'bool std::operator<(const std::error_condition&, const std::error_condition&)'
398 | operator<(const error_condition& __lhs,
| ^~~~~~~~
/usr/include/c++/11/system_error:398:36: note: no known conversion for argument 1 from 'std::ostream' {aka 'std::basic_ostream<char>'} to 'const std::error_condition&'
398 | operator<(const error_condition& __lhs,
| ~~~~~~~~~~~~~~~~~~~~~~~^~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:113,
from Main.cpp:1:
/usr/include/c++/11/thread:70:3: note: candidate: 'bool std::operator<(std::thread::id, std::thread::id)'
70 | operator<(thread::id __x, thread::id __y) noexcept
| ^~~~~~~~
/usr/include/c++/11/thread:70:24: note: no known conversion for argument 1 from 'std::ostream' {aka 'std::basic_ostream<char>'} to 'std::thread::id'
70 | operator<(thread::id __x, thread::id __y) noexcept
| ~~~~~~~~~~~^~~
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:133,
from Main.cpp:1:
/usr/include/c++/11/variant:1272:18: note: candidate: 'constexpr bool std::operator<(std::monostate, std::monostate)'
1272 | constexpr bool operator<(monostate, monostate) noexcept { return false; }
| ^~~~~~~~
/usr/include/c++/11/variant:1272:28: note: no known conversion for argument 1 from 'std::ostream' {aka 'std::basic_ostream<char>'} to 'std::monostate'
1272 | constexpr bool operator<(monostate, monostate) noexcept { return false; }
| ^~~~~~~~~