Borderou de evaluare (job #439005)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:6:14: error: variable ‘std::ifstream cin’ has initializer but incomplete type user.cpp:7:5: error: expected ‘,’ or ‘;’ before ‘ofstream’ user.cpp:10:10: error: ‘n’ was not declared in this scope user.cpp:11:10: error: ‘f’ was not declared in this scope user.cpp:11:13: error: ‘r’ was not declared in this scope user.cpp:12:5: error: ‘d’ was not declared in this scope user.cpp:13:5: error: ‘s’ was not declared in this scope user.cpp:14:5: error: expected ‘;’ before ‘for’ user.cpp:14:17: error: ‘i’ was not declared in this scope user.cpp:14:26: error: expected ‘;’ before ‘)’ token user.cpp:30:1: error: expected ‘}’ at end of input