Eroare de compilare: user.cpp: In function ‘void solve()’: user.cpp:105:35: error: parameter declared ‘auto’ sort(v.begin(), v.end(), [](auto a, auto b) {return a.second < b.second; }); ^ user.cpp:105:43: error: parameter declared ‘auto’ sort(v.begin(), v.end(), [](auto a, auto b) {return a.second < b.second; }); ^ user.cpp: In lambda function: user.cpp:105:54: error: ‘a’ was not declared in this scope sort(v.begin(), v.end(), [](auto a, auto b) {return a.second < b.second; }); ^ user.cpp:105:65: error: ‘b’ was not declared in this scope sort(v.begin(), v.end(), [](auto a, auto b) {return a.second < b.second; }); ^ In file included from /usr/include/c++/4.8/algorithm:62:0, from user.cpp:3: /usr/include/c++/4.8/bits/stl_algo.h: In instantiation of ‘void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >; _Compare = solve()::__lambda0]’: /usr/include/c++/4.8/bits/stl_algo.h:2250:70: required from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >; _Compare = solve()::__lambda0]’ /usr/include/c++/4.8/bits/stl_algo.h:5514:55: required from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >; _Compare = solve()::__lambda0]’ user.cpp:105:76: required from here /usr/include/c++/4.8/bits/stl_algo.h:2183:29: error: no match for call to ‘(solve()::__lambda0) (std::pair<int, int>&, std::pair<int, int>&)’ if (__comp(*__i, *__first)) ^ user.cpp:105:28: note: candidates are: sort(v.begin(), v.end(), [](auto a, auto b) {return a.second < b.second; }); ^ In file included from /usr/include/c++/4.8/algorithm:62:0, from user.cpp:3: /usr/include/c++/4.8/bits/stl_algo.h:2183:29: note: void (*)() <conversion> if (__comp(*__i, *__first)) ^ /usr/include/c++/4.8/bits/stl_algo.h:2183:29: note: candidate expects 1 argument, 3 provided user.cpp:105:44: note: solve()::__lambda0 sort(v.begin(), v.end(), [](auto a, auto b) {return a.second < b.second; }); ^ user.cpp:105:44: note: candidate expects 0 arguments, 2 provided In file included from /usr/include/c++/4.8/algorithm:62:0, from user.cpp:3: /usr/include/c++/4.8/bits/stl_algo.h: In instantiation of ‘void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >; _Compare = solve()::__lambda0]’: /usr/include/c++/4.8/bits/stl_algo.h:5363:59: required from ‘void std::partial_sort(_RAIter, _RAIter, _RAIter, _Compare) [with _RAIter = __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >; _Compare = solve()::__lambda0]’ /usr/include/c++/4.8/bits/stl_algo.h:2355:68: required from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >; _Size = int; _Compare = solve()::__lambda0]’ /usr/include/c++/4.8/bits/stl_algo.h:5513:44: required from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >; _Compare = solve()::__lambda0]’ user.cpp:105:76: required from here /usr/include/c++/4.8/bits/stl_algo.h:1972:27: error: no match for call to ‘(solve()::__lambda0) (std::pair<int, int>&, std::pair<int, int>&)’ if (__comp(*__i, *__first)) ^ user.cpp:105:28: note: candidates are: sort(v.begin(), v.end(), [](auto a, auto b) {return a.second < b.second; }); ^ In file included from /usr/include/c++/4.8/algorithm:62:0,