Compilare: user.cpp: In member function ‘bool Cell::operator=(const Cell&)’: user.cpp:16:4: warning: no return statement in function returning non-void [-Wreturn-type] }; ^ user.cpp: In function ‘int main()’: user.cpp:32:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&n,&m); ^ user.cpp:34:70: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d %d %d %d %d " ,&s.lvl,&s.l,&s.c,&d.lvl,&d.l,&d.c); ^ user.cpp:38:47: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d %d " ,&x.lvl,&x.l,&x.c); ^