Compilare: user.cpp:11: warning: non-local variable ‘<anonymous struct> spectacol [2005]’ uses anonymous type user.cpp:16: warning: non-local variable ‘<anonymous struct> graf’ uses anonymous type user.cpp: In function ‘void read()’: user.cpp:63: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:64: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:66: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:69: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result