# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
346647 | 2021-01-10T14:34:37 Z | youngyojun | 2circles (balkan11_2circles) | C++17 | Compilation error |
0 ms | 0 KB |
#include <vector> #include <algorithm> int main() { int a; std::vector< std::vector <int> > v; std::vector< std::vector <int> >::const_iterator it = std::find( v.begin(), v.end(), a ); }
Compilation message
twocircles.cpp: In function 'int main()': twocircles.cpp:7:54: warning: variable 'it' set but not used [-Wunused-but-set-variable] 7 | std::vector< std::vector <int> >::const_iterator it = std::find( v.begin(), v.end(), a ); | ^~ In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_equals_val<_Value>::operator()(_Iterator) [with _Iterator = __gnu_cxx::__normal_iterator<std::vector<int>*, std::vector<std::vector<int> > >; _Value = const int]': /usr/include/c++/9/bits/stl_algo.h:120:14: required from '_RandomAccessIterator std::__find_if(_RandomAccessIterator, _RandomAccessIterator, _Predicate, std::random_access_iterator_tag) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::vector<int>*, std::vector<std::vector<int> > >; _Predicate = __gnu_cxx::__ops::_Iter_equals_val<const int>]' /usr/include/c++/9/bits/stl_algo.h:161:23: required from '_Iterator std::__find_if(_Iterator, _Iterator, _Predicate) [with _Iterator = __gnu_cxx::__normal_iterator<std::vector<int>*, std::vector<std::vector<int> > >; _Predicate = __gnu_cxx::__ops::_Iter_equals_val<const int>]' /usr/include/c++/9/bits/stl_algo.h:3938:28: required from '_IIter std::find(_IIter, _IIter, const _Tp&) [with _IIter = __gnu_cxx::__normal_iterator<std::vector<int>*, std::vector<std::vector<int> > >; _Tp = int]' twocircles.cpp:7:92: required from here /usr/include/c++/9/bits/predefined_ops.h:241:17: error: no match for 'operator==' (operand types are 'std::vector<int>' and 'const int') 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/stl_algobase.h:67, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/stl_iterator.h:886:5: note: candidate: 'template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator==(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)' 886 | operator==(const __normal_iterator<_IteratorL, _Container>& __lhs, | ^~~~~~~~ /usr/include/c++/9/bits/stl_iterator.h:886:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/stl_algobase.h:67, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/stl_iterator.h:893:5: note: candidate: 'template<class _Iterator, class _Container> bool __gnu_cxx::operator==(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)' 893 | operator==(const __normal_iterator<_Iterator, _Container>& __lhs, | ^~~~~~~~ /usr/include/c++/9/bits/stl_iterator.h:893:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/stl_algobase.h:64, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/stl_pair.h:448:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)' 448 | operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) | ^~~~~~~~ /usr/include/c++/9/bits/stl_pair.h:448:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const std::pair<_T1, _T2>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/stl_algobase.h:67, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/stl_iterator.h:325:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)' 325 | operator==(const reverse_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/9/bits/stl_iterator.h:325:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const std::reverse_iterator<_Iterator>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/stl_algobase.h:67, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/stl_iterator.h:363:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)' 363 | operator==(const reverse_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/9/bits/stl_iterator.h:363:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const std::reverse_iterator<_Iterator>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/stl_algobase.h:67, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/stl_iterator.h:1139:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)' 1139 | operator==(const move_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/9/bits/stl_iterator.h:1139:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const std::move_iterator<_IteratorL>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/stl_algobase.h:67, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/stl_iterator.h:1145:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)' 1145 | operator==(const move_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/9/bits/stl_iterator.h:1145:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const std::move_iterator<_IteratorL>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/vector:64, from twocircles.cpp:1: /usr/include/c++/9/bits/allocator.h:168:5: note: candidate: 'template<class _T1, class _T2> bool std::operator==(const std::allocator<_Tp1>&, const std::allocator<_T2>&)' 168 | operator==(const allocator<_T1>&, const allocator<_T2>&) | ^~~~~~~~ /usr/include/c++/9/bits/allocator.h:168:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const std::allocator<_Tp1>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/vector:67, from twocircles.cpp:1: /usr/include/c++/9/bits/stl_vector.h:1888:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator==(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)' 1888 | operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) | ^~~~~~~~ /usr/include/c++/9/bits/stl_vector.h:1888:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: mismatched types 'const std::vector<_Tp, _Alloc>' and 'const int' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/char_traits.h:40, from /usr/include/c++/9/string:40, from /usr/include/c++/9/stdexcept:39, from /usr/include/c++/9/array:39, from /usr/include/c++/9/tuple:39, from /usr/include/c++/9/functional:54, from /usr/include/c++/9/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/9/algorithm:71, from twocircles.cpp:2: /usr/include/c++/9/bits/postypes.h:222:5: note: candidate: 'template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)' 222 | operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs) | ^~~~~~~~ /usr/include/c++/9/bits/postypes.h:222:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const std::fpos<_StateT>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/basic_string.h:48, from /usr/include/c++/9/string:55, from /usr/include/c++/9/stdexcept:39, from /usr/include/c++/9/array:39, from /usr/include/c++/9/tuple:39, from /usr/include/c++/9/functional:54, from /usr/include/c++/9/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/9/algorithm:71, from twocircles.cpp:2: /usr/include/c++/9/string_view:473:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)' 473 | operator==(basic_string_view<_CharT, _Traits> __x, | ^~~~~~~~ /usr/include/c++/9/string_view:473:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'std::basic_string_view<_CharT, _Traits>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/basic_string.h:48, from /usr/include/c++/9/string:55, from /usr/include/c++/9/stdexcept:39, from /usr/include/c++/9/array:39, from /usr/include/c++/9/tuple:39, from /usr/include/c++/9/functional:54, from /usr/include/c++/9/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/9/algorithm:71, from twocircles.cpp:2: /usr/include/c++/9/string_view:479:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::__detail::__idt<std::basic_string_view<_CharT, _Traits> >)' 479 | operator==(basic_string_view<_CharT, _Traits> __x, | ^~~~~~~~ /usr/include/c++/9/string_view:479:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'std::basic_string_view<_CharT, _Traits>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/bits/basic_string.h:48, from /usr/include/c++/9/string:55, from /usr/include/c++/9/stdexcept:39, from /usr/include/c++/9/array:39, from /usr/include/c++/9/tuple:39, from /usr/include/c++/9/functional:54, from /usr/include/c++/9/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/9/algorithm:71, from twocircles.cpp:2: /usr/include/c++/9/string_view:485:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::__detail::__idt<std::basic_string_view<_CharT, _Traits> >, std::basic_string_view<_CharT, _Traits>)' 485 | operator==(__detail::__idt<basic_string_view<_CharT, _Traits>> __x, | ^~~~~~~~ /usr/include/c++/9/string_view:485:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/string:55, from /usr/include/c++/9/stdexcept:39, from /usr/include/c++/9/array:39, from /usr/include/c++/9/tuple:39, from /usr/include/c++/9/functional:54, from /usr/include/c++/9/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/9/algorithm:71, from twocircles.cpp:2: /usr/include/c++/9/bits/basic_string.h:6141:5: 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>&)' 6141 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/9/bits/basic_string.h:6141:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/string:55, from /usr/include/c++/9/stdexcept:39, from /usr/include/c++/9/array:39, from /usr/include/c++/9/tuple:39, from /usr/include/c++/9/functional:54, from /usr/include/c++/9/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/9/algorithm:71, from twocircles.cpp:2: /usr/include/c++/9/bits/basic_string.h:6149:5: note: candidate: 'template<class _CharT> typename __gnu_cxx::__enable_if<std::__is_char<_Tp>::__value, bool>::__type std::operator==(const std::__cxx11::basic_string<_CharT>&, const std::__cxx11::basic_string<_CharT>&)' 6149 | operator==(const basic_string<_CharT>& __lhs, | ^~~~~~~~ /usr/include/c++/9/bits/basic_string.h:6149:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: 'std::vector<int>' is not derived from 'const std::__cxx11::basic_string<_CharT>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/string:55, from /usr/include/c++/9/stdexcept:39, from /usr/include/c++/9/array:39, from /usr/include/c++/9/tuple:39, from /usr/include/c++/9/functional:54, from /usr/include/c++/9/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/9/algorithm:71, from twocircles.cpp:2: /usr/include/c++/9/bits/basic_string.h:6163:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)' 6163 | operator==(const _CharT* __lhs, | ^~~~~~~~ /usr/include/c++/9/bits/basic_string.h:6163:5: note: template argument deduction/substitution failed: In file included from /usr/include/c++/9/bits/stl_algobase.h:71, from /usr/include/c++/9/vector:60, from twocircles.cpp:1: /usr/include/c++/9/bits/predefined_ops.h:241:17: note: mismatched types 'const _CharT*' and 'std::vector<int>' 241 | { return *__it == _M_value; } | ~~~~~~^~~~~~~~~~~ In file included from /usr/include/c++/9/string:55, from /usr/include/c++/9/stdexcept:39, from /usr/include/c++/9/array:39, from /usr/include/c++/9/tuple:39, from /usr/include/c++/