Borderou de evaluare (job #69692)

Eroare de compilare: user.cpp:4:12: error: variable ‘std::ifstream in’ has initializer but incomplete type user.cpp:5:13: error: variable ‘std::ofstream out’ has initializer but incomplete type user.cpp: In function ‘int main()’: user.cpp:21:9: error: ‘z’ was not declared in this scope user.cpp:25:11: error: ‘d’ was not declared in this scope user.cpp:25:19: error: ‘z1’ was not declared in this scope user.cpp:26:11: error: expected ‘;’ before ‘z1’ user.cpp:28:20: error: ‘z1’ was not declared in this scope user.cpp:32:21: error: ‘z1’ was not declared in this scope