Compilare: user.cpp: In function ‘void cit(int&)’: user.cpp:29: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:33: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘void WriteData()’: user.cpp:84: warning: ‘X’ may be used uninitialized in this function user.cpp:84: warning: ‘Y’ may be used uninitialized in this function