Eroare de compilare: user.cpp: In function ‘long long int citeste()’: user.cpp:13:21: error: ‘fin’ was not declared in this scope char ch = fgetc(fin); ^ user.cpp: In function ‘int main()’: user.cpp:50:24: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 2 has type ‘int’ [-Wformat=] printf("%lld\n", nr); ^ user.cpp:26:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dtcsu.in" ,"r", stdin ); ^ user.cpp:27:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dtcsu.out","w", stdout); ^