Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:50: error: no match for ‘operator<<’ in ‘fin << a[i].interv::start’ user.cpp:54: error: no match for ‘operator<<’ in ‘fin << b[i].zi::z’ user.cpp:71: error: no match for ‘operator>>’ in ‘fout >> "0 0"’ user.cpp:87: error: no match for ‘operator>>’ in ‘fout >> "0 0"’ user.cpp:90: error: no match for ‘operator>>’ in ‘fout >> sol[i]’ user.cpp:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result