divizori.cpp: In function 'int main()': divizori.cpp:21: warning: unused variable 'max' divizori.cpp:21: warning: unused variable 'u' divizori.cpp:21: warning: unused variable 'j' divizori.cpp:23: warning: unused variable 'd' divizori.cpp:20: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result divizori.cpp:20: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result divizori.cpp:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result