Compilare: user.cpp:53: warning: ‘typedef’ was ignored in this declaration user.cpp: In function ‘int main()’: user.cpp:94: warning: too many arguments for format user.cpp:77: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:80: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int nivele(int)’: user.cpp:70: warning: control reaches end of non-void function