Compilare: user.cpp: In constructor ‘node::node()’: user.cpp:15: warning: ‘node::crit’ will be initialized after user.cpp:13: warning: ‘int node::min’ user.cpp:16: warning: when initialized here user.cpp: In function ‘void read_in()’: user.cpp:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result