Eroare de compilare: user.cpp:1:21: error: fstream.h: No such file or directory user.cpp:4:25: warning: missing terminating " character user.cpp:4: error: missing terminating " character user.cpp:3: error: ‘ifstream’ does not name a type user.cpp:4: error: ‘ofstream’ does not name a type user.cpp: In function ‘int main()’: user.cpp:23: error: ‘in’ was not declared in this scope user.cpp:23: error: ‘T’ was not declared in this scope user.cpp:29: error: ‘a’ was not declared in this scope user.cpp:30: error: ‘b’ was not declared in this scope user.cpp:51: error: ‘out’ was not declared in this scope user.cpp:19: warning: unused variable ‘j’