Eroare de compilare: main.cpp: In function 'int main()': main.cpp:61:23: error: no match for 'operator>>' (operand types are 'InParser' and 'int64_t {aka long int}') int64_t a, b; cin >> a >> b; ~~~~^~~~ main.cpp:27:13: note: candidate: InParser& InParser::operator>>(int&) <near match> InParser& operator >> (int &n) { ^~~~~~~~ main.cpp:27:13: note: conversion of argument 1 would be ill-formed: main.cpp:61:26: error: invalid initialization of non-const reference of type 'int&' from an rvalue of type 'int' int64_t a, b; cin >> a >> b; ^ In file included from /usr/include/c++/6/string:53:0, from /usr/include/c++/6/bits/locale_classes.h:40, from /usr/include/c++/6/bits/ios_base.h:41, from /usr/include/c++/6/ios:42, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/basic_string.tcc:1437:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) operator>>(basic_istream<_CharT, _Traits>& __in, ^~~~~~~~ /usr/include/c++/6/bits/basic_string.tcc:1437:5: note: template argument deduction/substitution failed: main.cpp:61:26: note: 'InParser' is not derived from 'std::basic_istream<_CharT, _Traits>' int64_t a, b; cin >> a >> b; ^ In file included from /usr/include/c++/6/istream:934:0, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/istream.tcc:963:5: note: candidate: template<class _CharT2, class _Traits2> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*) operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s) ^~~~~~~~ /usr/include/c++/6/bits/istream.tcc:963:5: note: template argument deduction/substitution failed: main.cpp:61:26: note: 'InParser' is not derived from 'std::basic_istream<_CharT, _Traits>' int64_t a, b; cin >> a >> b; ^ In file included from /usr/include/c++/6/istream:934:0, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/istream.tcc:931:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&) operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c) ^~~~~~~~ Non zero exit status: 1