Eroare de compilare: user.cpp:1:21: error: iostream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:7: error: ‘stdin’ was not declared in this scope user.cpp:7: error: ‘freopen’ was not declared in this scope user.cpp:8: error: ‘stdout’ was not declared in this scope user.cpp:10: error: ‘scanf’ was not declared in this scope user.cpp:14: warning: suggest parentheses around ‘&&’ within ‘||’ user.cpp:28: error: ‘printf’ was not declared in this scope