Eroare de compilare: user.cpp: In function ‘void processAndWrite(std::vector<Interval, std::allocator<Interval> >&)’: user.cpp:58: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main(int, char**)’: user.cpp:82: warning: comparison between signed and unsigned integer expressions In file included from /usr/include/c++/4.4/algorithm:62, from user.cpp:3: /usr/include/c++/4.4/bits/stl_algo.h: In function ‘const _Tp& std::__median(const _Tp&, const _Tp&, const _Tp&) [with _Tp = Interval]’: /usr/include/c++/4.4/bits/stl_algo.h:2268: instantiated from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<Interval*, std::vector<Interval, std::allocator<Interval> > >, _Size = int]’ /usr/include/c++/4.4/bits/stl_algo.h:5220: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<Interval*, std::vector<Interval, std::allocator<Interval> > >]’ user.cpp:55: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:89: error: no match for ‘operator<’ in ‘__a < __b’ user.cpp:22: note: candidates are: bool operator<(Interval&, Interval&) /usr/include/c++/4.4/bits/stl_algo.h:90: error: no match for ‘operator<’ in ‘__b < __c’ user.cpp:22: note: candidates are: bool operator<(Interval&, Interval&) /usr/include/c++/4.4/bits/stl_algo.h:92: error: no match for ‘operator<’ in ‘__a < __c’ user.cpp:22: note: candidates are: bool operator<(Interval&, Interval&) /usr/include/c++/4.4/bits/stl_algo.h:96: error: no match for ‘operator<’ in ‘__a < __c’ user.cpp:22: note: candidates are: bool operator<(Interval&, Interval&) /usr/include/c++/4.4/bits/stl_algo.h:98: error: no match for ‘operator<’ in ‘__b < __c’ user.cpp:22: note: candidates are: bool operator<(Interval&, Interval&)