Eroare de compilare: In file included from /usr/include/c++/4.8/algorithm:62:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from user.cpp:1: /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<trips*, std::vector<trips> >; _Tp = trips]’: /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<trips*, std::vector<trips> >]’ /usr/include/c++/4.8/bits/stl_algo.h:2388:54: required from ‘void std::__introselect(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Size) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<trips*, std::vector<trips> >; _Size = int]’ /usr/include/c++/4.8/bits/stl_algo.h:5401:36: required from ‘void std::nth_element(_RAIter, _RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<trips*, std::vector<trips> >]’ user.cpp:62:46: required from here /usr/include/c++/4.8/bits/stl_algo.h:2269:19: error: passing ‘const trips’ as ‘this’ argument of ‘bool trips::operator<(trips)’ discards qualifiers [-fpermissive] while (__pivot < *__last) ^ user.cpp: In function ‘void Read()’: user.cpp:31:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:34:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf %lf", &x, &y); ^ user.cpp: In function ‘int main()’: user.cpp:92:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("infasuratoare.in", "r", stdin); ^ user.cpp:93:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("infasuratoare.out", "w", stdout); ^