실행 실패 (제출 코드 컴파일 에러)
Main.cpp: In function ‘int main()’: Main.cpp:25:14: error: no match for ‘operator<<’ (operand types are ‘std::ostream’ {aka ‘std::basic_ostream<char>’} and ‘std::vector<int>’) 25 | cout << a <<'\n'; | ~~~~ ^~ ~ | | | | | std::vector<int> | std::ostream {aka std::basic_ostream<char>} In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:108:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ostream_type& (*)(std::basic_ostream<_CharT, _Traits>::__ostream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 108 | operator<<(__ostream_type& (*__pf)(__ostream_type&)) | ^~~~~~~~ /usr/include/c++/11/ostream:108:36: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘std::basic_ostream<char>::__ostream_type& (*)(std::basic_ostream<char>::__ostream_type&)’ {aka ‘std::basic_ostream<char>& (*)(std::basic_ostream<char>&)’} 108 | operator<<(__ostream_type& (*__pf)(__ostream_type&)) | ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/ostream:117:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ios_type& (*)(std::basic_ostream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>; std::basic_ostream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]’ 117 | operator<<(__ios_type& (*__pf)(__ios_type&)) | ^~~~~~~~ /usr/include/c++/11/ostream:117:32: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘std::basic_ostream<char>::__ios_type& (*)(std::basic_ostream<char>::__ios_type&)’ {aka ‘std::basic_ios<char>& (*)(std::basic_ios<char>&)’} 117 | operator<<(__ios_type& (*__pf)(__ios_type&)) | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ /usr/include/c++/11/ostream:127:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 127 | operator<<(ios_base& (*__pf) (ios_base&)) | ^~~~~~~~ /usr/include/c++/11/ostream:127:30: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘std::ios_base& (*)(std::ios_base&)’ 127 | operator<<(ios_base& (*__pf) (ios_base&)) | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ /usr/include/c++/11/ostream:166:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 166 | operator<<(long __n) | ^~~~~~~~ /usr/include/c++/11/ostream:166:23: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘long int’ 166 | operator<<(long __n) | ~~~~~^~~ /usr/include/c++/11/ostream:170:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 170 | operator<<(unsigned long __n) | ^~~~~~~~ /usr/include/c++/11/ostream:170:32: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘long unsigned int’ 170 | operator<<(unsigned long __n) | ~~~~~~~~~~~~~~^~~ /usr/include/c++/11/ostream:174:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(bool) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 174 | operator<<(bool __n) | ^~~~~~~~ /usr/include/c++/11/ostream:174:23: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘bool’ 174 | operator<<(bool __n) | ~~~~~^~~ In file included from /usr/include/c++/11/ostream:829, from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/bits/ostream.tcc:91:5: note: candidate: ‘std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(short int) [with _CharT = char; _Traits = std::char_traits<char>]’ 91 | basic_ostream<_CharT, _Traits>:: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/ostream.tcc:92:22: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘short int’ 92 | operator<<(short __n) | ~~~~~~^~~ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:181:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(short unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 181 | operator<<(unsigned short __n) | ^~~~~~~~ /usr/include/c++/11/ostream:181:33: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘short unsigned int’ 181 | operator<<(unsigned short __n) | ~~~~~~~~~~~~~~~^~~ In file included from /usr/include/c++/11/ostream:829, from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/bits/ostream.tcc:105:5: note: candidate: ‘std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(int) [with _CharT = char; _Traits = std::char_traits<char>]’ 105 | basic_ostream<_CharT, _Traits>:: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/ostream.tcc:106:20: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘int’ 106 | operator<<(int __n) | ~~~~^~~ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:192:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 192 | operator<<(unsigned int __n) | ^~~~~~~~ /usr/include/c++/11/ostream:192:31: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘unsigned int’ 192 | operator<<(unsigned int __n) | ~~~~~~~~~~~~~^~~ /usr/include/c++/11/ostream:201:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 201 | operator<<(long long __n) | ^~~~~~~~ /usr/include/c++/11/ostream:201:28: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘long long int’ 201 | operator<<(long long __n) | ~~~~~~~~~~^~~ /usr/include/c++/11/ostream:205:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 205 | operator<<(unsigned long long __n) | ^~~~~~~~ /usr/include/c++/11/ostream:205:37: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘long long unsigned int’ 205 | operator<<(unsigned long long __n) | ~~~~~~~~~~~~~~~~~~~^~~ /usr/include/c++/11/ostream:220:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(double) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 220 | operator<<(double __f) | ^~~~~~~~ /usr/include/c++/11/ostream:220:25: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘double’ 220 | operator<<(double __f) | ~~~~~~~^~~ /usr/include/c++/11/ostream:224:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(float) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 224 | operator<<(float __f) | ^~~~~~~~ /usr/include/c++/11/ostream:224:24: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘float’ 224 | operator<<(float __f) | ~~~~~~^~~ /usr/include/c++/11/ostream:232:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long double) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 232 | operator<<(long double __f) | ^~~~~~~~ /usr/include/c++/11/ostream:232:30: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘long double’ 232 | operator<<(long double __f) | ~~~~~~~~~~~~^~~ /usr/include/c++/11/ostream:245:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(const void*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]’ 245 | operator<<(const void* __p) | ^~~~~~~~ /usr/include/c++/11/ostream:245:30: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘const void*’ 245 | operator<<(const void* __p) | ~~~~~~~~~~~~^~~ /usr/include/c++/11/ostream:250:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::nullptr_t) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>; std::nullptr_t = std::nullptr_t]’ 250 | operator<<(nullptr_t) | ^~~~~~~~ /usr/include/c++/11/ostream:250:18: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘std::nullptr_t’ 250 | operator<<(nullptr_t) | ^~~~~~~~~ In file included from /usr/include/c++/11/ostream:829, from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/bits/ostream.tcc:119:5: note: candidate: ‘std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>]’ 119 | basic_ostream<_CharT, _Traits>:: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/ostream.tcc:120:34: note: no known conversion for argument 1 from ‘std::vector<int>’ to ‘std::basic_ostream<char>::__streambuf_type*’ {aka ‘std::basic_streambuf<char>*’} 120 | operator<<(__streambuf_type* __sbin) | ~~~~~~~~~~~~~~~~~~^~~~~~ 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/ostream:38, from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/string_view:667:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, std::basic_string_view<_CharT, _Traits>)’ 667 | operator<<(basic_ostream<_CharT, _Traits>& __os, | ^~~~~~~~ /usr/include/c++/11/string_view:667:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: ‘std::vector<int>’ is not derived from ‘std::basic_string_view<_CharT, _Traits>’ 25 | cout << a <<'\n'; | ^ 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/ostream:38, from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/bits/basic_string.h:6531:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)’ 6531 | operator<<(basic_ostream<_CharT, _Traits>& __os, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6531:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: ‘std::vector<int>’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>’ 25 | cout << a <<'\n'; | ^ 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/ostream:38, from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/system_error:279:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::error_code&)’ 279 | operator<<(basic_ostream<_CharT, _Traits>& __os, const error_code& __e) | ^~~~~~~~ /usr/include/c++/11/system_error:279:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘const std::error_code&’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:513:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT)’ 513 | operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c) | ^~~~~~~~ /usr/include/c++/11/ostream:513:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: deduced conflicting types for parameter ‘_CharT’ (‘char’ and ‘std::vector<int>’) 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:518:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, char)’ 518 | operator<<(basic_ostream<_CharT, _Traits>& __out, char __c) | ^~~~~~~~ /usr/include/c++/11/ostream:518:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘char’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:524:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char)’ 524 | operator<<(basic_ostream<char, _Traits>& __out, char __c) | ^~~~~~~~ /usr/include/c++/11/ostream:524:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘char’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:530:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, signed char)’ 530 | operator<<(basic_ostream<char, _Traits>& __out, signed char __c) | ^~~~~~~~ /usr/include/c++/11/ostream:530:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘signed char’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:535:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, unsigned char)’ 535 | operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c) | ^~~~~~~~ /usr/include/c++/11/ostream:535:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘unsigned char’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:544:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, wchar_t)’ (deleted) 544 | operator<<(basic_ostream<char, _Traits>&, wchar_t) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:544:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘wchar_t’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:549:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char8_t)’ (deleted) 549 | operator<<(basic_ostream<char, _Traits>&, char8_t) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:549:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘char8_t’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:554:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char16_t)’ (deleted) 554 | operator<<(basic_ostream<char, _Traits>&, char16_t) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:554:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘char16_t’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:558:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char32_t)’ (deleted) 558 | operator<<(basic_ostream<char, _Traits>&, char32_t) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:558:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘char32_t’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:564:5: note: candidate: ‘template<class _Traits> std::basic_ostream<wchar_t, _Traits>& std::operator<<(std::basic_ostream<wchar_t, _Traits>&, char8_t)’ (deleted) 564 | operator<<(basic_ostream<wchar_t, _Traits>&, char8_t) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:564:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: mismatched types ‘wchar_t’ and ‘char’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:569:5: note: candidate: ‘template<class _Traits> std::basic_ostream<wchar_t, _Traits>& std::operator<<(std::basic_ostream<wchar_t, _Traits>&, char16_t)’ (deleted) 569 | operator<<(basic_ostream<wchar_t, _Traits>&, char16_t) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:569:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: mismatched types ‘wchar_t’ and ‘char’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:573:5: note: candidate: ‘template<class _Traits> std::basic_ostream<wchar_t, _Traits>& std::operator<<(std::basic_ostream<wchar_t, _Traits>&, char32_t)’ (deleted) 573 | operator<<(basic_ostream<wchar_t, _Traits>&, char32_t) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:573:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: mismatched types ‘wchar_t’ and ‘char’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:594:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*)’ 594 | operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s) | ^~~~~~~~ /usr/include/c++/11/ostream:594:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: mismatched types ‘const _CharT*’ and ‘std::vector<int>’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/ostream:829, from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/bits/ostream.tcc:321:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const char*)’ 321 | operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s) | ^~~~~~~~ /usr/include/c++/11/bits/ostream.tcc:321:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘const char*’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:611:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char*)’ 611 | operator<<(basic_ostream<char, _Traits>& __out, const char* __s) | ^~~~~~~~ /usr/include/c++/11/ostream:611:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘const char*’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:624:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const signed char*)’ 624 | operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s) | ^~~~~~~~ /usr/include/c++/11/ostream:624:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘const signed char*’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:629:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const unsigned char*)’ 629 | operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s) | ^~~~~~~~ /usr/include/c++/11/ostream:629:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘const unsigned char*’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:638:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const wchar_t*)’ (deleted) 638 | operator<<(basic_ostream<char, _Traits>&, const wchar_t*) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:638:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘const wchar_t*’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:643:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char8_t*)’ (deleted) 643 | operator<<(basic_ostream<char, _Traits>&, const char8_t*) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:643:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘const char8_t*’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:648:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char16_t*)’ (deleted) 648 | operator<<(basic_ostream<char, _Traits>&, const char16_t*) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:648:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘const char16_t*’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:652:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char32_t*)’ (deleted) 652 | operator<<(basic_ostream<char, _Traits>&, const char32_t*) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:652:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: cannot convert ‘a’ (type ‘std::vector<int>’) to type ‘const char32_t*’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:658:5: note: candidate: ‘template<class _Traits> std::basic_ostream<wchar_t, _Traits>& std::operator<<(std::basic_ostream<wchar_t, _Traits>&, const char8_t*)’ (deleted) 658 | operator<<(basic_ostream<wchar_t, _Traits>&, const char8_t*) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:658:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: mismatched types ‘wchar_t’ and ‘char’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:663:5: note: candidate: ‘template<class _Traits> std::basic_ostream<wchar_t, _Traits>& std::operator<<(std::basic_ostream<wchar_t, _Traits>&, const char16_t*)’ (deleted) 663 | operator<<(basic_ostream<wchar_t, _Traits>&, const char16_t*) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:663:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: mismatched types ‘wchar_t’ and ‘char’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:667:5: note: candidate: ‘template<class _Traits> std::basic_ostream<wchar_t, _Traits>& std::operator<<(std::basic_ostream<wchar_t, _Traits>&, const char32_t*)’ (deleted) 667 | operator<<(basic_ostream<wchar_t, _Traits>&, const char32_t*) = delete; | ^~~~~~~~ /usr/include/c++/11/ostream:667:5: note: template argument deduction/substitution failed: Main.cpp:25:17: note: mismatched types ‘wchar_t’ and ‘char’ 25 | cout << a <<'\n'; | ^ In file included from /usr/include/c++/11/iostream:39, from Main.cpp:1: /usr/include/c++/11/ostream:750:5: note: candidate: ‘template<class _Ostream, class _Tp> _Ostream&& std::operator<<(_Ostream&&, const _Tp&)’ 750 | operator<<(_Ostream&& __os, const _Tp& __x) | ^~~~~~~~ /usr/include/c++/11/ostream:750:5: note: template argument deduction/substitution failed: /usr/include/c++/11/ostream: In substitution of ‘template<class _Ostream, class _Tp> _Ostream&& std::operator<<(_Ostream&&, const _Tp&) [with _Ostream = std::basic_ostream<char>&; _Tp = std::vector<int>]’: Main.cpp:25:17: required from here /usr/include/c++/11/ostream:750:5: error: template constraint failure for ‘template<class _Os, class _Tp> requires (__derived_from_ios_base<_Os>) && requires(_Os& __os, const _Tp& __t) {__os << __t;} using __rvalue_stream_insertion_t = _Os&&’ /usr/include/c++/11/ostream:750:5: note: constraints not satisfied /usr/include/c++/11/ostream: In substitution of ‘template<class _Os, class _Tp> requires (__derived_from_ios_base<_Os>) && requires(_Os& __os, const _Tp& __t) {__os << __t;} using __rvalue_stream_insertion_t = _Os&& [with _Os = std::basic_ostream<char>&; _Tp = std::vector<int>]’: /usr/include/c++/11/ostream:750:5: required by substitution of ‘template<class _Ostream, class _Tp> _Ostream&& std::operator<<(_Ostream&&, const _Tp&) [with _Ostream = std::basic_ostream<char>&; _Tp = std::vector<int>]’ Main.cpp:25:17: required from here /usr/include/c++/11/ostream:717:13: required for the satisfaction of ‘__derived_from_ios_base<_Os>’ [with _Os = std::basic_ostream<char, std::char_traits<char> >&] /usr/include/c++/11/ostream:717:39: note: the expression ‘is_class_v<_Tp> [with _Tp = std::basic_ostream<char, std::char_traits<char> >&]’ evaluated to ‘false’ 717 | concept __derived_from_ios_base = is_class_v<_Tp> | ^~~~~~~~~~~~~~~ Main.cpp:24:13: warning: unused variable ‘sum’ [-Wunused-variable] 24 | int sum = a[j] + a[k] + a[l]; | ^~~
정답 개수:
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틀린 개수:
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실행 실패 개수:
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반례를 발견하지 못했습니다.