Compilare: user.cpp: In function ‘void read()’: user.cpp:35:32: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘bool*’ [-Wformat=] scanf ( "%d" , &refill ) ; ^ user.cpp:31:45: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ( "lanterna.in" , "r" , stdin ) ; ^ user.cpp:32:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d %d" , &N , &K ) ; ^ user.cpp:35:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d" , &refill ) ; ^ user.cpp:38:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d" , &M ) ; ^ user.cpp:41:64: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d %d %d %d" , &x , &y , &distance , &power ) ; ^