Compilare: user.cpp: In function ‘int main()’: user.cpp:50: warning: name lookup of ‘x’ changed user.cpp:15: warning: matches this ‘x’ under ISO standard rules user.cpp:43: warning: matches this ‘x’ under old rules user.cpp:51: warning: name lookup of ‘y’ changed user.cpp:15: warning: matches this ‘y’ under ISO standard rules user.cpp:43: warning: matches this ‘y’ under old rules user.cpp:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result