Compilare: user.cpp: In function ‘short int Getshort()’: user.cpp:48: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:53: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘short int Nr(short int, short int)’: user.cpp:63: warning: suggest explicit braces to avoid ambiguous ‘else’