Compilare: user.cpp: In function ‘int main()’: user.cpp:17: warning: suggest parentheses around assignment used as truth value user.cpp:18: warning: statement has no effect user.cpp:8: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:9: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result