Eroare de compilare: user.cpp:1:21: error: fstream.h: No such file or directory user.cpp:3: error: expected constructor, destructor, or type conversion before ‘*’ token user.cpp: In function ‘int main()’: user.cpp:9: error: ‘f’ was not declared in this scope user.cpp:9: error: ‘fopen’ was not declared in this scope user.cpp:10: error: ‘g’ was not declared in this scope user.cpp:12: error: ‘fscanf’ was not declared in this scope user.cpp:34: error: ‘fprintf’ was not declared in this scope