Eroare de compilare: user.cpp:1:20: error: fstream.h: No such file or directory user.cpp:4: error: ‘ofstream’ does not name a type user.cpp: In function ‘int main()’: user.cpp:8: warning: format ‘%d’ expects type ‘int*’, but argument 2 has type ‘long long int*’ user.cpp:14: error: ‘out’ was not declared in this scope user.cpp:7: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:8: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result