Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:26:95: error: use of ‘auto’ in lambda parameter declaration only available with -std=c++14 or -std=gnu++14 const auto ans = accumulate(digits.rbegin(), digits.rend(), make_pair(0ULL, 1ULL), [](auto sum, char x) { ^ user.cpp: In lambda function: user.cpp:27:34: error: request for member ‘first’ in ‘sum’, which is of non-class type ‘int’ return make_pair(sum.first + sum.second * larger[x - '0'], sum.second * all[x - '0']); ^ user.cpp:27:46: error: request for member ‘second’ in ‘sum’, which is of non-class type ‘int’ return make_pair(sum.first + sum.second * larger[x - '0'], sum.second * all[x - '0']); ^ user.cpp:27:76: error: request for member ‘second’ in ‘sum’, which is of non-class type ‘int’ return make_pair(sum.first + sum.second * larger[x - '0'], sum.second * all[x - '0']); ^ In file included from /usr/include/c++/5/numeric:62:0, from /usr/include/c++/5/bits/random.tcc:33, from /usr/include/c++/5/random:51, from /usr/include/c++/5/bits/stl_algo.h:66, from /usr/include/c++/5/algorithm:62, from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:64, from user.cpp:1: /usr/include/c++/5/bits/stl_numeric.h: In instantiation of ‘_Tp std::accumulate(_InputIterator, _InputIterator, _Tp, _BinaryOperation) [with _InputIterator = std::reverse_iterator<__gnu_cxx::__normal_iterator<char*, std::__cxx11::basic_string<char> > >; _Tp = std::pair<long long unsigned int, long long unsigned int>; _BinaryOperation = main()::<lambda(int, char)>]’: user.cpp:28:10: required from here /usr/include/c++/5/bits/stl_numeric.h:154:22: error: no match for call to ‘(main()::<lambda(int, char)>) (std::pair<long long unsigned int, long long unsigned int>&, char&)’ __init = __binary_op(__init, *__first); ^ /usr/include/c++/5/bits/stl_numeric.h:154:22: note: candidate: void (*)(int, char) <conversion> /usr/include/c++/5/bits/stl_numeric.h:154:22: note: candidate expects 3 arguments, 3 provided user.cpp:26:111: note: candidate: main()::<lambda(int, char)> const auto ans = accumulate(digits.rbegin(), digits.rend(), make_pair(0ULL, 1ULL), [](auto sum, char x) { ^ user.cpp:26:111: note: no known conversion for argument 1 from ‘std::pair<long long unsigned int, long long unsigned int>’ to ‘int’