Eroare de compilare: In file included from /usr/include/c++/4.8/algorithm:62:0, from user.cpp:7: /usr/include/c++/4.8/bits/stl_algo.h: In instantiation of ‘_RandomAccessIterator std::__unguarded_partition(_RandomAccessIterator, _RandomAccessIterator, const _Tp&) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<Hash*, std::vector<Hash> >; _Tp = Hash]’: /usr/include/c++/4.8/bits/stl_algo.h:2307:70: required from ‘_RandomAccessIterator std::__unguarded_partition_pivot(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<Hash*, std::vector<Hash> >]’ /usr/include/c++/4.8/bits/stl_algo.h:2338:54: required from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<Hash*, std::vector<Hash> >; _Size = int]’ /usr/include/c++/4.8/bits/stl_algo.h:5475:36: required from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<Hash*, std::vector<Hash> >]’ user.cpp:174:32: required from here /usr/include/c++/4.8/bits/stl_algo.h:2269:19: error: passing ‘const Hash’ as ‘this’ argument of ‘bool Hash::operator<(const Hash&)’ discards qualifiers [-fpermissive] while (__pivot < *__last) ^ user.cpp: In member function ‘void inputReader::getBuffer()’: user.cpp:33:47: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, 1, bufferDim, stdin); ^