Eroare de compilare: user.cpp:87:16: error: ISO C++ forbids declaration of ‘write_’ with no type [-fpermissive] inline write_() ^ user.cpp: In function ‘int write_()’: user.cpp:91:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void read_()’: user.cpp:69:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &n); ^ user.cpp:72:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &x); ^