Eroare de compilare: main.cpp: In function 'int main()': main.cpp:12:14: error: no match for 'operator>>' (operand types are 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} and 'char') 12 | fin>>a>>b>>'\n'; | ~~~~~~~~~^~~~~~ | | | | | char | std::basic_istream<char>::__istream_type {aka std::basic_istream<char>} In file included from /usr/include/c++/12.2.1/fstream:38, from main.cpp:1: /usr/include/c++/12.2.1/istream:120:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match) 120 | operator>>(__istream_type& (*__pf)(__istream_type&)) | ^~~~~~~~ /usr/include/c++/12.2.1/istream:120:7: note: conversion of argument 1 would be ill-formed: main.cpp:12:16: error: invalid conversion from 'char' to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'} [-fpermissive] 12 | fin>>a>>b>>'\n'; | ^~~~ | | | char /usr/include/c++/12.2.1/istream:124:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__ios_type& (*)(__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>; __ios_type = std::basic_ios<char>]' (near match) 124 | operator>>(__ios_type& (*__pf)(__ios_type&)) | ^~~~~~~~ /usr/include/c++/12.2.1/istream:124:7: note: conversion of argument 1 would be ill-formed: main.cpp:12:16: error: invalid conversion from 'char' to 'std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'} [-fpermissive] 12 | fin>>a>>b>>'\n'; | ^~~~ | | | char /usr/include/c++/12.2.1/istream:131:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match) 131 | operator>>(ios_base& (*__pf)(ios_base&)) | ^~~~~~~~ /usr/include/c++/12.2.1/istream:131:7: note: conversion of argument 1 would be ill-formed: main.cpp:12:16: error: invalid conversion from 'char' to 'std::ios_base& (*)(std::ios_base&)' [-fpermissive] 12 | fin>>a>>b>>'\n'; | ^~~~ | | | char /usr/include/c++/12.2.1/istream:168:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match) 168 | operator>>(bool& __n) | ^~~~~~~~ /usr/include/c++/12.2.1/istream:168:7: note: conversion of argument 1 would be ill-formed: main.cpp:12:16: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'char' 12 | fin>>a>>b>>'\n'; | ^~~~ /usr/include/c++/12.2.1/istream:172:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match) 172 | operator>>(short& __n); | ^~~~~~~~ /usr/include/c++/12.2.1/istream:172:7: note: conversion of argument 1 would be ill-formed: main.cpp:12:16: error: cannot bind non-const lvalue reference of type 'short int&' to a value of type 'char' 12 | fin>>a>>b>>'\n'; | ^~~~ Non zero exit status: 1