Eroare de compilare: user.cpp: In function ‘void query(int, int, int, int)’: user.cpp:58: error: no match for ‘operator=’ in ‘ret = query_quad(1, 0, 0, 1048576, 1048576, x1, y1, x2, y2)’ /usr/include/c++/4.4/bits/stl_pair.h:68: note: candidates are: std::pair<std::pair<int, int>, std::pair<int, int> >& std::pair<std::pair<int, int>, std::pair<int, int> >::operator=(const std::pair<std::pair<int, int>, std::pair<int, int> >&) user.cpp: In function ‘int main()’: user.cpp:68: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:69: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:71: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:75: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:78: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:82: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:86: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result