Eroare de compilare: user.cpp:1:18: error: Stdio.h: No such file or directory user.cpp: In function 'int main()': user.cpp:6: error: 'FILE' was not declared in this scope user.cpp:6: error: 'g' was not declared in this scope user.cpp:6: error: 'fopen' was not declared in this scope user.cpp:6: error: 'f' was not declared in this scope user.cpp:9: error: 'fgets' was not declared in this scope user.cpp:24: error: 'fprintf' was not declared in this scope