Borderou de evaluare (job #273019)

Eroare de compilare: In file included from /usr/include/c++/4.6/algorithm:63:0, from user.cpp:3: /usr/include/c++/4.6/bits/stl_algo.h: In function ‘_RandomAccessIterator std::__unguarded_partition(_RandomAccessIterator, _RandomAccessIterator, const _Tp&, _Compare) [with _RandomAccessIterator = std::pair<int, int>*, _Tp = std::pair<int, int>, _Compare = main()::<lambda(std::pair<int, int>&, std::pair<int, int>&)>]’: /usr/include/c++/4.6/bits/stl_algo.h:2265:78: instantiated from ‘_RandomAccessIterator std::__unguarded_partition_pivot(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = std::pair<int, int>*, _Compare = main()::<lambda(std::pair<int, int>&, std::pair<int, int>&)>]’ /usr/include/c++/4.6/bits/stl_algo.h:2306:62: instantiated from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = std::pair<int, int>*, _Size = int, _Compare = main()::<lambda(std::pair<int, int>&, std::pair<int, int>&)>]’ /usr/include/c++/4.6/bits/stl_algo.h:5445:4: instantiated from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = std::pair<int, int>*, _Compare = main()::<lambda(std::pair<int, int>&, std::pair<int, int>&)>]’ user.cpp:32:11: instantiated from here /usr/include/c++/4.6/bits/stl_algo.h:2233:4: error: no match for call to ‘(main()::<lambda(std::pair<int, int>&, std::pair<int, int>&)>) (std::pair<int, int>&, const std::pair<int, int>&)’ user.cpp:29:21: note: candidates are: /usr/include/c++/4.6/bits/stl_algo.h:2233:4: note: bool (*)(std::pair<int, int>&, std::pair<int, int>&) <conversion> /usr/include/c++/4.6/bits/stl_algo.h:2233:4: note: candidate expects 3 arguments, 3 provided user.cpp:29:66: note: main()::<lambda(std::pair<int, int>&, std::pair<int, int>&)> user.cpp:29:66: note: no known conversion for argument 2 from ‘const std::pair<int, int>’ to ‘std::pair<int, int>&’ /usr/include/c++/4.6/bits/stl_algo.h:2236:4: error: no match for call to ‘(main()::<lambda(std::pair<int, int>&, std::pair<int, int>&)>) (const std::pair<int, int>&, std::pair<int, int>&)’ user.cpp:29:21: note: candidates are: /usr/include/c++/4.6/bits/stl_algo.h:2236:4: note: bool (*)(std::pair<int, int>&, std::pair<int, int>&) <conversion> /usr/include/c++/4.6/bits/stl_algo.h:2236:4: note: candidate expects 3 arguments, 3 provided user.cpp:29:66: note: main()::<lambda(std::pair<int, int>&, std::pair<int, int>&)> user.cpp:29:66: note: no known conversion for argument 1 from ‘const std::pair<int, int>’ to ‘std::pair<int, int>&’