Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:14: error: ‘diag’ was not declared in this scope user.cpp:19: warning: format ‘%d’ expects type ‘int*’, but argument 3 has type ‘long int*’ user.cpp:20: error: ‘diag’ was not declared in this scope user.cpp:12: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:19: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result