aperm.cpp: In function 'long long int Ordine(int*)': aperm.cpp:13: warning: unused variable 'i' aperm.cpp:13: warning: unused variable 'j' aperm.cpp: In function 'int main()': aperm.cpp:26: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result aperm.cpp:27: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result aperm.cpp:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result aperm.cpp:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result aperm.cpp: In function 'long long int Ordine(int*)': aperm.cpp:16: warning: 'x' is used uninitialized in this function