Eroare de compilare: main.cpp:1:9: warning: #pragma once in main file 1 | #pragma once | ^~~~ main.cpp: In function 'std::vector<std::pair<int, int> > readPoints(std::ifstream&)': main.cpp:459:9: error: no match for 'operator>>' (operand types are 'std::ifstream' {aka 'std::basic_ifstream<char>'} and 'size_t' {aka 'long unsigned int'}) 459 | fin >> n; | ~~~ ^~ ~ | | | | | size_t {aka long unsigned int} | std::ifstream {aka std::basic_ifstream<char>} In file included from /usr/include/c++/12.2.1/string:54, from /usr/include/c++/12.2.1/bits/locale_classes.h:40, from /usr/include/c++/12.2.1/bits/ios_base.h:41, from /usr/include/c++/12.2.1/ios:42, from /usr/include/c++/12.2.1/ostream:38, from /usr/include/c++/12.2.1/iostream:39, from main.cpp:11: /usr/include/c++/12.2.1/bits/basic_string.tcc:940:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, __cxx11::basic_string<_CharT, _Traits, _Allocator>&)' 940 | operator>>(basic_istream<_CharT, _Traits>& __in, | ^~~~~~~~ /usr/include/c++/12.2.1/bits/basic_string.tcc:940:5: note: template argument deduction/substitution failed: main.cpp:459:12: note: 'std::ifstream' {aka 'std::basic_ifstream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>' 459 | fin >> n; | ^ In file included from /usr/include/c++/12.2.1/istream:1016, from /usr/include/c++/12.2.1/iostream:40: /usr/include/c++/12.2.1/bits/istream.tcc:960:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, _CharT&)' 960 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c) | ^~~~~~~~ /usr/include/c++/12.2.1/bits/istream.tcc:960:5: note: template argument deduction/substitution failed: main.cpp:459:12: note: 'std::ifstream' {aka 'std::basic_ifstream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>' 459 | fin >> n; | ^ /usr/include/c++/12.2.1/istream:756:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, unsigned char&)' 756 | operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c) | ^~~~~~~~ /usr/include/c++/12.2.1/istream:756:5: note: template argument deduction/substitution failed: main.cpp:459:12: note: 'std::ifstream' {aka 'std::basic_ifstream<char>'} is not derived from 'std::basic_istream<char, _Traits>' 459 | fin >> n; | ^ /usr/include/c++/12.2.1/istream:761:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, signed char&)' 761 | operator>>(basic_istream<char, _Traits>& __in, signed char& __c) | ^~~~~~~~ /usr/include/c++/12.2.1/istream:761:5: note: template argument deduction/substitution failed: main.cpp:459:12: note: 'std::ifstream' {aka 'std::basic_ifstream<char>'} is not derived from 'std::basic_istream<char, _Traits>' 459 | fin >> n; | ^ /usr/include/c++/12.2.1/istream:859:5: note: candidate: 'template<class _CharT, class _Traits, long unsigned int _Num> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, _CharT (&)[_Num])' 859 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT (&__s)[_Num]) | ^~~~~~~~ Non zero exit status: 1